The MOST RELIABLE Aquarium HEATER We Have Used: Eheim TruTemp Heater Review

[@PrimeTimeAquatics]

Here is the Amazon affiliate link for the Eheim Heater: amzn.to/2SqUSY1 Here is the Amazon affiliate link for the thermometer we use: amzn.to/38trYMI Also, our new shirts can be found at: www.primetimeaquatics.com/merch For the latest in the fish room check us out on Instagram primetime_aquatics

[@H2Blaidd]

Hey I have a fifty five gallon tank and I don't know which heater is proper size for it could I get any help?

[@bentonamos8045]

I guess I'm kind of randomly asking but do anybody know of a good site to watch newly released series online ?

[@dashmason322]

@Benton Amos lately I have been using Flixzone. Just google for it :)

[@wayneakins6752]

Same question for a 55 gallon what size heater ?

[@larryc835]

@@H2Blaidd Hugh Boden & wayne akins I run Eheim Jager 200 watt trutemp on 50 gallon amazon tank with rock solid convection at 78 degrees fahrenheit. Outstanding appliance.

[@mk_cichlids]

Ever since I've started running sponge filters on my tanks, I like having my heaters towards the bottom of the tank sideways. Now I can do water water changes and leave everything running. No messing with power strips or having to unplug anything. It's really nice when doing tank maintenance on multiple tanks in one day.

[@bettatimestories807]

Mike Kirkpatrick that’s the same setup I have! Although most of my tanks are in a heated room, so even easier. ☺️

[@AAE-cg1il]

I have a 150 watt Eheim running for 4 years on my 46 bowfront. It’s a solid work horse……I agree with your comments on the economics. This has lasted twice as long as the brand I had previous. In essence the Eheim has paid for itself.

[@sschario60]

Excellent point about the heater calibration ring. To get my 75 gallon mbuna tank at 77-78°F, I need to turn down my Eheim heater to around 73. Once it's dialed in, the water temp stays 77.5-77.8.

[@Lulu-gb7it]

So your water never gets to a cold point???

[@wheelsdeal]

I've used these for over 12 years they are pretty much the mainstream here in Europe.Only downside are the suction cups which dont last more than a year.They recently come up with a newer version the thermocontrol-e which supposely is more precise and doesnt need calibration from the top.Same price i believe..

[@Compasscard]

Indeed, decent suction cups are hard to find. They all harden quite fast

[@craigv367godsman4]

I was just getting ready to purchase a heater and decide to look up some info first. Came across your video and it answered my questions. I really appreciate the insight. Thank you kindly

[@ronaldoseven4865]

I am planning to get the Eheim heater on my next payday at Pet Smart. I did my research about the heater, and a lot of positive reviews about the product. It is Made in Germany. It is $30-40 depending the watts you want/need depending the size of your aquariums at home. I need it for my 20 gallon.

[@nicoletiana]

how do you like the heater? i JUST got the tetra 100 watts submersible heater for my 20 gal tank and the water is still cool, not even a tad bit warm 🙃 will be returning it tomorrow if i check my water tonight and it's still cold.

[@habituallinestepper6569]

Update on it?

[@ItzAllG]

Just got my 300W for 16$

[@janesutube9675]

Had this heater for years....best I have owned. Especially like the inexpensive holder replacement on amazon....

[@Compasscard]

Confirmed, Sera and Eheim heaters are very good. The eheim jaeger 300w is my preferred one and it serves me well for 4 years now in a 300l tank

[@samiam3565]

some heaters temp gauge are at the top that's why its usually recommended to have the heater at an angle or horizontal due to heat rising and possibly giving the wrong temp reading because the heater is set vertically.

[@k.hunter5362]

I love this heater! I had a ich outbreak and I only had the preset heaters, it was awful. But this heater saved my remaining fish, it's strong and has a wide range, a great review Jason.

[@kbalaz]

I had issues with the first heater from eheim I bought, they replaced it easily and quickly. Second one is working flawless, things I have found out, if temp is at 80 and I want to lower it to 79, can't just turn it down one click and wait to see if it lowers, it didn't, temp actually went up. What I figured out is I look at where its set, say its at 80 on dial, I have to turn it way lower, down into the 60s and then turn it pack to desired setting of 79 and it works perfectly. If I don't do it this way, temp will not budge or even go higher then before.

[@PrimeTimeAquatics]

Thanks for sharing!

[@mpwall123]

Can I ask if your heater is properly calibrated? I elect not to do so ( as discussed in the video) so I am just getting a feel what I specifically need to do.

[@kbalaz]

MPWALL I did calibrate it. Means nothing really, just so the dial shows actual temp. Couldn't calibrate first heater. Dial was maxed out in direction and temp was still higher then what the dial said so they replaced it. New one I calibrated the dial in a bucket before I put into tank. Working well.

[@glennt3207]

I have 3 tanks, small. 40 gallons is the largest. They are the best heaters made today.....they last for years. Totally agree with the statement..DO NOT rely in the temps on the dials and use a thermometer., which is common sense with every brand.

[@fishtalk3379]

It is a great heater but vertical on any heater is not the way to go. Heat rises and will cycle any heater way too much and decrease its life even more quickly. Nice video, thanks for sharing!

[@Rafilkis]

Which one do you suggest?

[@InternacionalBoxing]

That's interesting because i always preferred the Horizontal look lol

[@apaulmcdonough2170]

The Heater is designed to be mounted vertically. The thermostat Won't regulate properly mounted at an angle.

[@andersvandal5845]

I have an old Eheim heater that has been running for nearly 20yrs straight! Zero problems.

[@ivanbower6814]

I believed the calibration radial serves a different purpose than you described (in a good way)! If one puts a given sized heater in a tank slightly larger/ smaller than the explicit listed size, the resulting temperature will differ from the blue radial. That's where the red "calibration" radial comes into play as an amazing feature. You can mark a given +/- as long as you know the ultimate result in the specific tank the heater is in. It's awesome. Eheim provides quality that should be viewed by every other company as a standard needing to be met.

[@raziel8321]

The size of the aquarium has no effect. temperature is temperature. No matter how many W a heater has, or how many liters a tank. The internal control ensures the set temperature and heats until it is reached. However, measuring the temperature can be inaccurate, especially with heaters with such simple technology as the eheim. Wrong measurement is pretty much standard. That's why you can use the ring to shift the scale to compensate for the wrong measurement.

[@ranger178]

the thermostat inside wears over time so you can adjust the dial to set what temp is your tank gets to and depending on location of heater in tank and position it can vary so you can set it to what your tank achieves.

[@timothycantu9443]

Yes I run a 300 watt eheim for over a year in my 155 bought another another today , really worth the price!

[@dannyhyde7019]

Ive been running Eheim's 300watt and a 250 in my tanks for many trouble free years. True they don't come cheap but neither is replacing lost pets.

[@PrimeTimeAquatics]

Good point!

[@Lulu-gb7it]

I have my first 300 watt heater. My water still doesnt stay at desired temp. How do i achieve this? Your water stays constantly warm??? No cold points ever???

[@LVJANISLV]

My stock Tetra heater failed today, only after 3 months of use. Amazon reviews and your video helped to pick Eheim. They only seem to be £5 more than the cheap Chinese ones.

[@RealMenHaveCats]

I've been quite impressed with the new Eheim Thermocontrol-e series heater. It’s very similar in appearance and operation to the Eheim Jager heaters you’re using now, but it’s electronically controlled for greater accuracy than the bimetallic thermostat in the older model. On the USA version, the dial is only marked at 68, 72, 75, 79, 82, 86, and 90 degrees Fahrenheit (corresponding to 20, 22, 24, 26, 28, 30, and 32 Celsius), so it takes some trial and error to get it exactly where you want, but once you do, it maintains the set temperature very accurately. Testing with a high-quality Thermapen kitchen thermometer, I’ve found it to maintain temperature at +/- 0.3 degrees Fahrenheit, which is better than advertised. It has a single LED on the front that is red when the unit is actively heating, and green when the set temperature has been reached. It’s fairly unobtrusive. The USA version comes in nine sizes, from 25 to 300 watts (the Euro versions go up to 400 watts). They’re still hard to find, so the price might be artificially a bit high, but I recommend it over the older unit.

[@Bigpoecilia]

Mine just got stuck in the "ON" position. Calling Eheim today.

[@PrimeTimeAquatics]

Thanks for sharing your insight.

[@Bigpoecilia]

@@PrimeTimeAquatics I forgot to mention I do have a few of the true temp models and they work without issues. It's unfortunate that the re-calibration method is not user friendly. I've read and view so many videos on calibration and everyone seems to have a different method or explanation on how to achieve success.

[@ranger178]

@@Bigpoecilia those contacts on the thermostats wear out and weld themselves together too big of a heater makes it cycle on and off too much

[@Bigpoecilia]

@@ranger178 I wonder why they just don’t work out of the box? So much trouble shooting to get them to work.

[@mirsad96]

I got an eheim heater because of this video. A year later its as good as on day one. I hope this helps someone save a buck or two in the long run.

[@PrimeTimeAquatics]

Good to hear!

[@steveklotz973]

I've got several green Ego Jagger heaters over 35 years old still work great! Same company I've heard. Great review, Thank you.

[@PrimeTimeAquatics]

Steve Klotz glad they have worked for you too!

[@Muppet92954]

The last cheap heater I bought got stuck on during the night and I woke up to steam rising from the tank, a bunch a dead fish and a temp of 99 degrees F. in the tank. Sad way to learn a lesson on heaters but I definitely learned and haven’t bought another cheap heater since.

[@PrimeTimeAquatics]

Sorry to hear that - I think a lot of us learn that lesson at some point.

[@lauchlanstill6677]

muppet929 when I was younger I had a small tank with 2 clown loaches and 2 silver sharks, the heater broke and put the temp up from25 degrees to 35 plus the fish jumped cus they were getting basically boiled alive, which is really sad ;( (Celsius

[@98Firehawk001]

Just had heater from Amazon blow up 2 weeks after its return date - live and learn, glad I had a Fluval back up. I just bought two of these, hope I have better luck this time.

[@sarahcannon1049]

My topfin heater has dropped Temps at night for 2 nights in a row, going to replace it and found this video. Thanks as always for great information!

[@PrimeTimeAquatics]

Hope this one works better for you!

[@sarahcannon1049]

@@PrimeTimeAquatics I'm sure it will, hope you guys are having a blast at aquashella!!

[@flemmingj1965]

i have the Inkbird Temperature Controller ITC-308-WIFI for my aquarium and my eheim jager 150 w heater plugged into the controller

[@Runnygraph20]

Man i just got back into the hobby and I am loving your vids. Keep up the good wrk guys.

[@PrimeTimeAquatics]

Thank you!

[@matthewkobielus2656]

U couldn’t be more right about these heaters I’ve refused to buy another brand of heater ever since I’ve baught my first one of these they have outlasted every other heater brand to the point where I just started to upgrade all of my other brands to these just because I knew they were gonna break in no time

[@PrimeTimeAquatics]

Thanks for sharing your experience!

[@robertcarlosllenarizas7987]

sir your tip and tricks hack is so very informative. like a simple fish keeper like me. please upload more tips and advice. more power to you. 😊😊😊😊👍👍👍👍

[@PrimeTimeAquatics]

Thank you!

[@Tirfing88]

got 4 of them going strong, 25w in the 5 gallon, 75w in the fluval flex and the 20 long and 125w in the 40gal breeder, all hooked to external inkbird thermostat. They're reliable, but the inkbird gives me a second layer of security! In the unliekly event that the eheims would get stuck, the inkbirds will shut down the electricty supply when the water reaches a temp threshold (I set it to 76-79F, with shut down threshold of 82F), and it will even sound a loud alarm to alert you the water is overheating! It will also alert you of cold water threshold in case the heater does not turn on (my cold water threshold/alarm is at 73F) Everyone should have an inkbird, especially if they have lesser heaters.

[@PrimeTimeAquatics]

Sounds like a good setup!

[@bettatimestories807]

I had no idea they went down to 25 W! Lowest I’ve found was 50-75, which meant were too big/overpowered for my nano tanks. Shame, because I do find them to be the only brand I truly trust for safety, consistency, and reliability

[@jaykerr8031]

Personally I use the fluval E series heaters in all my tanks, various watts! Having the red, green and blue visual display is fantastic. Changing colour within 1 degree change, glass guard is also a good feature...

[@todddiedrich9106]

I heard good thing about this heater and picked one up for my new 75 gallon glad I got it now I’ve seen your video. Thanks

[@PrimeTimeAquatics]

Let us know how you like it!

[@todddiedrich9106]

Prime Time Aquatics so far so good it’s in a 75 gallon in basement that’s pretty cold 300 watt didn’t take long before it was up to temp let run without fish in it and put 2 thermometers in it found maybe 3 degrees off so moved calibration dial. Also have good luck with cobalt and fennex titanium digital control

[@RexDogDelivers]

Great video. We removed all our heaters and now want to bring a few in for Issues like Ick and special breeding projects. This is a great video for this.

[@PrimeTimeAquatics]

Karisa Jones we have a couple for those purposes too!

[@highwateraquatics2476]

I had one of those heaters and hated it because I couldn't adjust the temperature. The Fluvals are ok but now I have all Aquatop titanium externally controlled heaters. I know it's an inexpensive brand but it's much like having an Inkbird setup. For water temperature changes and viewing it can't be beat. Also I use digital thermometers.

[@vb2377]

A temperature controller is a great safeguard. Idea came from TM Aquatics.

[@PrimeTimeAquatics]

For sure!

[@billlooker2689]

I have 4 or 5 of this manufacturer that are 25 years old and still work.They are back ups but I just used them the other day

[@marinejosh1993]

Ive had three aqua ones in the same time as one eheim. Love the eheim brand

[@mayur1135]

I've only ever used 2 eheim jagers and they've both failed by staying on and over-heating a tank. I much prefer the Fluval M series heaters.

[@AntoniSchonken]

So I'm not the only one. Both my Eheim's have failed and overheated my aquaria.

[@mayur1135]

@@AntoniSchonken They changed the controller in the heaters a few years ago and they've been garbage ever since. People keep mindlessly recommending them, because the internet tells them to, without realizing the Jagers we have now are not the Jagars from 10 years ago.

[@PainterDans]

I have an m, no problems, 6 years old

[@dcphifer4307]

Great Review. I am starting to look for a heater for my recent addition of this 55G Aquarium as a room-divider in my living space. I just picked up this used Eheim 125W. I misread the post. I saw 50 and thought that it was a 50W, but instead it is for 40G to 53G. I do have an adjustable that I recently bought to heat up the change water before using. I'll use the one that I have been using to warm up the change-water for a 20G Long that I will be setting up next to move my Betta and his Clean-up Crew into. Being that I still need a heater for this 55G, what size should I get? The box says 150W for the 55G. I read that some say that I should get a 200W, and some say 250W to 300W. I admit, being new, I am confused on what to buy. Thanks in advance Much Appreciated.

[@PrimeTimeAquatics]

In 4ft tanks I actually like doing two smaller 100W heaters - one on each side.

[@treykings07]

Your review and opinion holds more value than thousands of reviews on Amazon. Didn't know which brand to go with. Everything that you've mentioned is what I'm looking for. Simply put, a heater that won't break and one that works. I'm buying this heater! I'm sure I can find this information, but if you can make it easier and provide the answer, I would appreciate it. But, is the 300w heater good for a 75 gal?

[@PrimeTimeAquatics]

I might opt for two 100 or 150 watt heaters to more evenly heat the tank?

[@treykings07]

@PrimeTimeAquatics sounds great! That means a shorter heater and less of a cost! The 300w is a behemoth; 19" 😳😬

[@deviously991]

I had a beta fish that lived 3 years in New England room tempature water and he was really happy

[@shyboyhernandez4782]

I been using the same heater for 2 years now. It work perfect.

[@PrimeTimeAquatics]

Very cool!

[@Anna-qwerty]

Thanks for this. New aquarium owner soon and just thinking of putting electronics underwater can be scary since you just need it to go wrong once. Thanks for your video !

[@PrimeTimeAquatics]

That is true!

[@BarrySuridge]

I use a Johnlen Micom External Display LED Heater 300W in my 200-litre tank. It comes encased in a guard. It also has safety shut off. I also check temperatures with a laser temperature gun.

[@kevinkentucky9972]

I've had two Eheim 300 watt heaters still working like day one ten + years later. Recently purchased a third for my 125

[@PrimeTimeAquatics]

Good to hear!

[@markhunter2244]

Very useful video, that’s one of my biggest fish keeping fears a heater malfunction. Now going to invest in a couple of Eheim Heaters to try 🤓

[@PrimeTimeAquatics]

Mark Hunter never fun when they go down.

[@damianowens5066]

Brilliant I had my first heater catastrophe recently where the thermostat stuck and it over heated the aquarium and I lost most of the fish! Luckily it was my quarantine tank and not my main aquarium! Thank for sharing this video 😉👍

[@PrimeTimeAquatics]

Damian Owens sorry to hear that!

[@gotmovie]

One of my 150 died after 2 years and one 125 temp started to acting up. I set 65F and it heats up to 85F. Lucky, I was able to get warranty replacement for both.

[@GreenSaxon]

Just replaced a Hygger heater three times in just over a year. Waiting for an Eheim to be delivered now (and wishing i knew about these before!)

[@PrimeTimeAquatics]

Well that stinks!

[@rocketrocks123]

Can u tell me if I can put more than one heater in my aquarium, just in case if one stops working overnight , I don’t want fishes to die . And if u do recommend what will be the settings on both of them , I have a cichlids 65 and 75 gallon tanks

[@PrimeTimeAquatics]

The best way to do that is to get a separate thermometer that controls them both and turns them on and off at the same time. Short of that you want to try and have them set to the same temps.

[@martinmercerjr8615]

I don’t trust the heater temperature either. I got 2 heaters in my 110 gallon tank. I just bought a new Eheim 300w and I have another 250w . The new Eheim was already set at 78 degrees. And I checked the temperature with outside temperature gauge it was almost 83 degrees. What is the */- with Eheim heater and what should I set it at. I know you have to also consider your room temperature too

[@joevasquez1776]

Just got a ehiem heater rebranded in a legal way with topfin, one of three got stuck on! It was a new wifi ehiem heater coming out this fall. Sad

[@woodworkerroyer8497]

Glad you posted this. I had one of these and it never said the right temp so I replaced it with a fluval. I just got a new one on sale from petsmart for a 60g turtle build. Glad to hear it was just paranoia and that my turtle will have a good heater.

[@PrimeTimeAquatics]

woodworker Royer ya, these things are workhorses!

[@ranger178]

does this heater use the standard bi metalic strip thermostatic contacts inside or is it electronic? those metal strip contact points always seem to wear out over time so i have separate controller for the heaters with two one high temp and one set lower so if something fails it has a backup.

[@heavenboundfarm2159]

thank you for the info ,,we need some heaters ,, love your shows ,,yall keep your fish room and tanks so clean ,,looks better than nice ,,our fish room dream ,,keep up the good work ,,

[@PrimeTimeAquatics]

Heaven Bound Farm thank you for watching!

[@-Gunnarsson-]

I used like 3-4 of them. But they all starts to leak and rust on the inside. And when the temp ring goes hard to turn. it stops working some time later

[@mpwall123]

I can’t agree more. Skip the calibration, and just gradually dial up or down the temperature setting, in conjunction with a separate thermometer. I always though reading a tank thermometer should be considered along the same lines, as watching a temperature gauge on a car.

[@mvvinds]

I lived Miami, Florida because heat and humidity temp over 100 degrees. Preset heater well. Looking Fluval Spec V

[@Familyfishfun]

Thanks for the video! Getting ready to set up a 45 gallon tank and have been worried about heaters. This looks like the ticket. I'm thinking two 100w heaters just in case one fails and for better heat distribution.

[@EcSsAwS]

I've had a 300w version for a few years now..still going strong And had Ebo jager heaters before that

[@PrimeTimeAquatics]

Cool!

[@a1b2c3z4k]

A quick question did the old EBO jager heater had numbers 1-9 or did it have the temperature degrees...? I am having trouble adjusting it to the right temperature 🌡

[@TurtReynoldsChannel]

Just subscribed, im probably going to get this heater. Your review was very helpful.

[@PrimeTimeAquatics]

Thank you for being here!

[@TurtReynoldsChannel]

@@PrimeTimeAquatics no problem.

[@josephquinton990]

Didn't that used to be the green EBO Jager heater back in the day? I thought they were the best too.

[@georgeforgerty2875]

Great video Jason!! I have ehiem heaters and filters ! They are the best products by far in my book!!

[@PrimeTimeAquatics]

Glad they are working well for you too!

[@davidbowman2501]

I only use eheim, fluval, or finnex titanium heaters any more. When I got back into the hobby a few years ago I tried to use a cheap heater from china and it was horrible. Malfunctioned and the temp in the tank went up to 98 degrees and killed nearly every fish in the tank. Unfortunately I was out of town when this happened for the weekend and came home to this mess.

[@PrimeTimeAquatics]

Ya, I agree with you - a heater is one thing where I won't buy a bargain brand. I've learned the hard way too and they always seem to break at 9pm on a Sunday night when it's impossible to go out and get another right away.

[@ghostboi890]

Just Bc this one video you deserve a sub I love you videos already

[@timrussell89]

Hey @Prime Time Aquatics. I just bought 3 new eheims as I was tired of the cheap preset heaters. I used your method of just turning the blue dial instead of trying to calibrate it. I found one of them was off by several degrees so far. It was set to 79 and had heated past 81 degrees and was still on. So I turned the temp back until the heater cut off and it didn't cut off until I got to 68. As long as it mantains around 80 I'll be fine with it. Just wondering if this is the norm for these heaters? The other two seem to be off by a few degrees but not nearly as far as that one.

[@PrimeTimeAquatics]

I haven't seen that - usually a degree or two, but not much more than that.

[@kburke9615]

That is my experience with my Eheim Jaeger heaters - I hate them! I am currently trying to recalibrate mine in a big bucket. It was "set" to 67F & my thermometer was reading 80F!! I'd just done a water change a few hours ago & it was around 77F. Came home from a movie date with hubby & saw that it had gone up to 80F. I can't have this happen, especially with this tank, it contains my white cloud minnows, a betta & some otos. This isn't the first Eheim heater that has been like this. Meanwhile, my Fluval in my other tank is consistent in keeping my tank at 77F.

[@timrussell89]

@@kburke9615 I made this comment a year ago. Wow time flies but I saw you replied and wanted to leave an update. My eheims have been going strong ever since I got them set correctly. So one year with no issues. Would another heater do just as good? Probably but Id say after a year of use they are pretty reliable.

[@HOUSESANDCONDOSoCOM]

I have been looking to get replacement heaters for my 60 gallon freshwater tank and took a look at the Eheim Tru Temp on Amazon and they have a lot of bad reviews with them over heating and many people also posting pictures of them failing and causing many problems. Just thinking people really need to check the reviews on these before running out and buying them?

[@JP-zr9wr]

Hello I really like the videos you make and I got the water filter you said in one of your videos. Anyway I need recommendation water heater for 5.5 gallon tank

[@PrimeTimeAquatics]

Thank you! I'm really not a big fan of any of the small heaters, but we wind up buying the small non-adjustable ones for nano tanks and know that they will probably only last a couple years.

[@jow.2450]

Prime Time Aquatics Would the Eheim Jager Aquarium Thermostat Heater 25 watt be okay for a 2.5 gallon? Is there a shut off?

[@juanjsalcedo6745]

Hi Jason!! Can you please make a video about Koi fish care? I have some in a 125 gallon aquarium.

[@PrimeTimeAquatics]

I actually haven't kept them, so I might be a bad source. : -)

[@juanjsalcedo6745]

@@PrimeTimeAquatics Thank for getting back to me. You guys are amazing everything you say is always correct. Do you have a membership or something where followers can also subscribe?

[@aquariumaddictions7672]

THANKS for the video . i was thinking about purchasing eheim heater as they tend to be little bit expensive side was having second thought. i live in india my regular air temp at afternoon are at about 30 - 33 deg C, water temp are at 25-27 deg C without heater , i don't need heater except for winter season. Just a question how much years on an average can i get out of that heater ? i have 2 tanks, 120 gallon and 85 gallon.

[@PrimeTimeAquatics]

The ones I currently have running are about 5 years old and no issues.

[@1on1dogtrainingregan73]

I have had over a doz eheims heaters. From 50 to 200 watts. Reliable and accurate until recently.. ovee half of the new ones ive bought have either not turned when water is lowered. Temp is up to 10 degrees off. So it reads 72 but heats to 82. This happened to a couole of my 3 yr old heaters. Needless to say i cooked some of my fish because the thermometer also was defective. Im so dissapointed because they can only be caliberated 4 degrees in either direction. Ive bought 7 heaters in the past yr. Only 2 could be caliberated. The others were so off i couldnt trust them.

[@mr.hamachi9918]

The best heater I have ever used but replacing the suction cup is nine dollars a pop, and is being replaced fairly often.

[@PrimeTimeAquatics]

I just let them rest along the side of the glass.

[@Borogerst32697]

Can you tell me how to adjust the temp on the eheim? There is a blue large ring at the top and also a tiny red one with an arrow. I can't get either of them to budge ☹️

[@PrimeTimeAquatics]

I mainly use the dial and then just keep an eye on a separate thermometer to really gauge tank temp.

[@Borogerst32697]

Yes I do that too but I don't get how to get either dial to move. Do you turn the blue one, the larger one? Or should I be moving the smaller red dial with the pointer on it? Nothing moves 😡

[@ThePriceIsRising]

Im about to set up a 75-gallon freshwater tank. Is it better to use two smaller heaters or one bigger one?

[@PrimeTimeAquatics]

I like using two smaller ones in 4ft tanks.

[@a1b2c3z4k]

A quick question... My EBO Jager Model Lz 250 has numbers instead of temperatures degrees, how do I know what temp I am setting it to ? It has 1-9 numbers and i cant figure out what is the right temperatures for 82°f.... I will really appreciate your help specially because im trying to get rid of ICH in my 50 gallon fish tank... Thank you

[@PrimeTimeAquatics]

If it has a light that turns on when it is heating I would start by setting it to that number. Once the tank temp has stabilized after 24 hours you can gradually turn it up until you hit the desired temp. That is essentially what I do on any adjustable heater since I don't rely on the temp settings the heater indicates.

[@Andingo86]

Why in the world would anybody ust mount it vertical, you dont make a mistake so it's a no brainier, I'm in fact installing mine VERTICALLY TONIGHT!!! LOL. Seriously I am installing that 1 tonight. Great video!!!!

[@sandraztavarez3525]

Do you have a video on the best aquarium thermometer? Is there a thermometer you recommend ?

[@PrimeTimeAquatics]

I like the cheap floating ones from Amazon.

[@cristopherrodriguezmatias9337]

Thank you very much for the review.

[@r.a.8503]

There is a small white round plastic part in the box !!is it a stand for the heater ..???

[@PrimeTimeAquatics]

Yes it is!

[@Desperado070]

Have been using the Eheim heaters for two years now. Also always had Juwel heaters, honestly I think the juwel heaters cost less to run. They both the same watt usage but the Juwel heater heats the water faster.

[@PakPhotog]

The amount of energy to heat your tank some number of degrees uses the same amount of energy regardless of what wattage heater you use. Higher wattage heaters will just get there a little faster (one if your Juwels is likely a bit higher in actually wattage than the other). So for the same size tanks and in the same conditions (same ambient temp, same tank dimensions tank, both made of the same material, etc.) the cost to heat them will be the same even if one heater gets to temp a little faster than the other.

[@ostravia]

How do you think it compares to the Chinese ceramic 1000W+ heaters? They just shut off when the water gets too hot instead of cooking your fish and turning red telling you it is doing this (usually when you are away).

[@PrimeTimeAquatics]

I haven't used that heater so I'm not sure?

[@Esianegg]

I saw this video and bought the same heater today It still has no cracks. 2023.

[@LionheartRacingSeries]

Bought the Eheim Tru Temp heater. Went with a 250 W for my 75 Gallon tank. It will not calibrate unfortunately. Its set to 65 but still bringing temps up to 82 degrees. I adjusted the red slider to both ends and its still over heating the aquarium. I know that the wattage might be a bit higher for this tank size but with it set to 65F it shouldnt be bringing temps over 82F. I think I got a dud which is a bummer because I have had positive experiences with Eheim products over the years.

[@PrimeTimeAquatics]

Sounds like it!

[@dean8553]

Sadly I cannot say the same about the Ehiem Thermopreset heaters. I haven't had much luck with the Ehiem heaters at all. I have had 2 go bad inside a year. Both went out with the same faults. I had the 150w heaters rated for 200-300l installed on a 200l aquarium. The temp reached 27c and the heaters wouldn't shut off. These heaters are preset to 25c so I assume should shut off at 25.5c and back on at 24.5c, or close to those temps 🤔

[@pabloisraelgarzanava166]

Thoughts on thermometers inside aquarium sticked inside the tank?

[@PrimeTimeAquatics]

I use them when I’m not heating the room! I stay with the cheap analog ones that float or stick to the glass.

[@whitechin99]

Thanks Jason. Good stuff.

[@Vcaser]

Is there an external temperature controller (thermostat?) we can run on heaters like what reptile keepers use? I’m scared to death if a heater gets stuck on, b/c I have a lot of expensive shrimp AND my precious fish

[@PrimeTimeAquatics]

Sure - lots of people plug the heater into a separate thermostat - it's a better way to set it up.

[@Rick-xy4bt]

Would you recommend 2 heaters in a 75 gal tank? Say 2 200's as opposed to 1 300?

[@PrimeTimeAquatics]

That how I would set it up, but with both plugged into a separate thermostat.

[@Rick-xy4bt]

Not sure I understand what you mean when you say both plugged into a separate thermostat? Did you mean a separate outlet?

[@mikemcguinness1662]

What do u think of those new canister filters that have a built in heater?

[@PrimeTimeAquatics]

I haven't tried them - the concept is sound.It's like when people build sumps, usually the heaters wind up in the sump and not the tank.

[@michaelmathes1991]

Great review. They are not made in China. I had a Marine land and it went up to over a 100 degrees and made in China.

[@vegaf2011]

Do you have a 500 watt recommendation? I love the heater you present in your video but is 300 watt good enough to heat up a 120 gallon tank at 75 to 80 degrees

[@PrimeTimeAquatics]

With a 120 I would opt for two 250 watt if possible. It will give you more even water temps throughout the tank.

[@vegaf2011]

@@PrimeTimeAquatics thanks my heater literally broke I gave it a second chance since I liked how it heated up the entire tank but gave out to soon. Then I remembered about these thermostat looking heat lamps and had a pair laying around that lasted me years and I regret not sticking to it. So I really appreciate you video can't wait to receive mine soon 🙌🏻.

[@robinbregman7540]

Can you hang it at a diagonal? The instructions say you can’t but every video I watch says it’s fine.

[@PrimeTimeAquatics]

I've never had a problem doing that

[@robinbregman7540]

@@PrimeTimeAquatics Thanks for the fast response. I really enjoyed your video and found it informative. You do a great job. Is it also OK to run it parallel towards the bottom of the tank?

[@richarddegannes2928]

Hello, Please advise if the light on my Eheim Jager 3617 should stay on all the time indicating the heater is working good? Thanks.

[@PrimeTimeAquatics]

For heaters that have a light, they usually come on when the heater is heating the water, but will shut off when the water temp is adequate.

[@richarddegannes2928]

@@PrimeTimeAquatics Thanks for reaching out, much appreciated.

[@sophistiq8ted]

I just bought these from petsmart for $23.99 (50w) and $26.99 (100w). Amazing deal and glad I chose these for my fish! I only run heaters for 4 months out of the year, but in those months it's essential in my tanks

[@AZTEC_ARTS]

Question : If these are FULLY submersible .... why is there a "minimum water line" ??

[@PrimeTimeAquatics]

The minimum is so you don’t burn the heater up by not having it fully submerged.

[@AlexK-ew1mo]

I have the eheim and love it. But lately when I wanted to raise the temp, it stays on the original 75. I have it set to 81, and it still stays at 75. You think it's busted? There's no contact or support info for them.

[@PrimeTimeAquatics]

Sounds like it might be if it can't get to a higher temp?

[@AlexK-ew1mo]

@@PrimeTimeAquatics I decided to read the instructions (because who really does that?). It said to turn it off before adjusting the temp. I never did that. So I turned the dial back to 75. Turned it off. Put it to 79ish. And turned it back on. Now it's finally around 78.

[@ScottPC]

Mine died in 6 months. It was a 50w powering a 35L so it wasn’t strained.

[@caewalker9276]

I heard that you should never have your heater vertical cause the heat runs up the heater and the thermostat keeps turning off and on because it's getting a false reading. You should lay them down so the heat rises away from the heater.

[@PrimeTimeAquatics]

I've heard that too, but I haven't seen that actually happen.

[@sushantsinha4687]

Hey Jason, Hope you all are safe.. Can you please advise if this heater can be placed horizontally rather than vertically?? And if yes, what will be the perfect position for that

[@PrimeTimeAquatics]

Sure - it doesn't matter with this filter. Lot's of people like to place this heater horizontally closer to the bottom of the tank to try and maximize the heat distribution.

[@sushantsinha4687]

Prime Time Aquatics thanks for your reply.. and what would be the best location to place it?? And just for my information, can you please advise as i have a tetra ht 150 watt heater which i bought along with the eheim heater. Can i place that tetra filter horizontally also??

[@CC-wy1yb]

I had 2 of those heater that did not work temperature keep going up had it set for 80 and it went up to 83 I turn it down and still bother heater went up to 83 . I just can’t seem to get a heater that works.