Are Hanna Checkers for Your Reef Tank Worth It?

[@keeferdog5617]

TIP- after completing test, rinse cuvette with rodi water twice. Then, fill cuvette to the top with rodi water and screw top on for storage with cuvette tube full of rodi water. This will avoid the inevitable residue streaking of glass on the inside of cuvette, when it air drys….

[@kiddt1999]

Great idea

[@chrisb2996]

This is exactly what I do

[@m1kke]

Great tip and should be recommended by Hanna.

[@madshepsreef282]

I love all my Hanna checkers best testers I ever purchased

[@kyledemps8182]

Really need to work on the audio mixing. The funk background music is way too loud and distracting.

[@mikeytrw]

HOT TIP: get a flat piece of soft polystyrene foam packing a few square inches in size, cut a hole just big enough to poke the cuvette into and boom, easy to use cuvette stand to make sure you don't knock it over while adding reagent. Makes the whole process SOOO much less fiddly.

[@xisotopex]

can this be used out of the box? what else do you have to buy? do you also have to buy the calibration cuvettes?

[@Sammy31Dee]

Hanna for alk...red sea for cal and mag...and nyos for nitrate and phosphate....the ultimate kit for manual testing 👌

[@ManiacalMangoes]

I’ve really liked my copper and nitrate HR checkers!

[@alexguitar841]

Thomas always gets a 👍 and for the most part Hanna checkers gets a 👍

[@TonyDamazio]

I always rinse them off twice with rodi water then fill the tube up about 3/4 of the way with rodi water and store it back in its case. It helps with not leaving any water spots.

[@fuffoon]

I like the phosphate one.

[@Rellikman]

Some checkers are worth it, some are a waste because I only need to know if there’s a presence of something and don’t need to know to the exact decimal.

[@charlie_0331]

please make a video for DIY marine light.

[@adamshaw5091]

Another quality presentation from one of my fav presenters. Can't speak for all, but as a point of feedback, the background dance beat that has crept in in the last few weeks.... suggest turning down or ditching as it is making it really hard to focus on Thomas and core messaging. Otherwise great work team 👏

[@BRStv]

Noted! Thanks for your feedback 🙂

[@glenndhooge6787]

As someone who studies bioscience and know what has to be do to cleaning a vial for accurate readings, knowing how you clean your vials kind of hurts me 😅 I dont say you have to use the cleaning fluid. But first since them thoroughly with tap water and then since them 3 times with RoDi. Meaning fill them partially with RoDi, close with the cap, give them a good shake, empty the vial and repeat. In this hobby most of us we have RoDi for basically "free" . So why not put it to good use for better measurements. 😉 Also for those with a 3d printer, there are some dry rack and workstation print files available specifically made for hanna checkers

[@DrakeNguyen4]

The moment I put the curvette in the checker, the checker turns off after 3 minutes?! It has batteries in it. Idk what’s wrong with my checker

[@wmars4655]

🤙 Love my hanna checkers although i got a nitrate low range accidentally opps. I use a Qtip for cleaning the vials when i see cloudiness.

[@Oskey33]

Does the Hanna Iron checker work for saltwater testing?

[@tomboys588]

I've seen some people use it

[@BRStv]

We've not tried using it with saltwater. For what it's worth, it's listed as a freshwater checker on the Hanna website.

[@ljcorner7393]

Which model number is the best or they all basically do all the same thing

[@dusk1947]

The easier a test is to perform: the more likely you are to do it regularly. This mentality is why I bought the few checkers I have. I only have Alk and Phosphate Checkers, and yes I love mine. They are fantastic when you want to do (most, not all) a test quickly and accurately. The Alk test is fast and easy. And the phosphate one is about the same speed, however, the colorimeter is far more accurate than my unsteady titration (without a pipettor) which matters when your trying to compare fractions of a ppm. I also hope to add the high range nitrate in the future. As a point of criticism, sourcing the reagent packet can get difficult in the recent times of upended global supply chains. However, every test kit is subject to that vulnerability.

[@thefishtankhobbyist]

I store my cuvets with RODI water in them. It works like a charm!

[@jordanm2984]

If I'm doing multiple Hanna checks at the same time, can I use one vial of reference tank water (for the initial zero'ing)?

[@baaa4698]

For most tests yes BUT due to subtle variations in vial glass I’d not do that unless u don’t need the most accurate result

[@kongyiu]

Question: Will the temperature affect the testresults? Like when the lights are on or off, will there be a difference? Are there other factors that can alter the results?

[@BRStv]

We've not notice any testing differences with slight differences in temperature. The test results are taken within the Hanna Checker, so your aquarium lighting being on or off shouldn't affect the results either. I just wouldn't take your test results directly after feeding.

[@FreethinkerDave]

The individual reagent packets are a pain. Just give us a small jar of reagent and a measuring spoon. Much cheaper to manufacture and keeps the cost down. WIn-win for Hanna and the customers.

[@g_the_status1474]

TIP - I use a boon bottle drying rack to air dry my cuvettes, works like a charm. Also, does anyone know if the Hanna Magnesium checker is compatibile with the Hanna Master Reef Test Kit?

[@BRStv]

As of now, the Marine Master (HI97105) cannot test for magnesium.

[@kasemg2222]

Love Hanna, any news on how good the new magnesium one is yet. Keen to buy one. Just hereing mixed reviews

[@BRStv]

The magnesium checker is slated for release in early to mid June, so we'll have our hands on it soon 🙂

[@tomboys588]

I'm just put off by how expensive the reagents are and that the reagent sometimes doesn't seem that easy to source.

[@BRStv]

Most reagents for the Hanna checkers are between $10-15, making them about $0.40-0.60 per test. They are a few cents more per test (for example, Red Sea alk is about $0.31 per test vs $0.40 for the Hanna alk), but we think that the ease of use and digital read out are worth it.

[@tomboys588]

@@BRStv but that is not the case in the UK. The actual checkers themselves here convert back from pounds as being $100 each. Hanna overcharges for everything in Europe. I have now ordered some of them, but they're only going to get used once a month to check against normal kits.

[@viperfanatic13]

I clean my vials like Thomas but I leave them full of rodi water rather than let them dry out...

[@godsdemon7441]

There isn't an all in one? Those things are very expensive to only do 1 task.

[@BRStv]

The Hanna HI97105 can do many tests including alkalinity, calcium, nitrate, nitrite, pH, and phosphate. www.bulkreefsupply.com/marine-master-hi97105-multiparameter-photometer-hanna-instruments.html