Rainbow Shark | My Experience Keeping

I got my Albino Rainbow Shark about a year ago now and wanted to talk through what I've learned. They tend to be a somewhat controversial fish online as they are sold at chain stores (Petsmart / Petco), get to a decent size, and are all over the place in terms of what aggresiveness owners experience. This video goes through my thoughts after a year of keeping one on tank size, growth, aggressivenss, tank mates, water parameters, and other recommendations for someone thinking about getting a rainbow shark.
If you are interested in additional information about Rainbow Sharks I recommend checking out my website that includes a care sheet at aquariumapi.com/wp/rainbow-sh...
- Current food I'm feed my Rainbow Shark -
Omega One Veggie Rounds - amzn.to/38l84WU
Hikari Sinking Wafers - amzn.to/3paGkKI
API Bottom Feeder Pellets - amzn.to/2JQarad
- Equipment I'm using on this tank -
Background Light Kit - amzn.to/3zeXDOH
Full Lighting Kit (Top & Background) - amzn.to/2MHqKrw
Canister Filter - amzn.to/3qCEROr
In-line Heater - amzn.to/2TpQtrN
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#aquarium #aquariumhobby #rainbowshark
Music Credit:
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[@TheAquaticCoder]

Thank you for checking out the video. Below are timestamps to different sections of the video if you want to skip around. If you enjoy the video please give it a like and consider subscribing to my channel. It is a big help if you can! Also if there are any questions I can help answer for you let me know. 01:27 - Tank Size & Setup 02:59 - Growth & Size 06:34 - Interesting Behavior 07:48 - Food & Diet 08:40 - Water Parameters 11:25 - Should you get a Rainbow Shark?

[@mondraymondo]

Also thank you for this thorough species spotlight of them!

[@KushyCouch]

Tried to keep a black rainbow shark in my community with giant danios, dwarf gouramis and a half banded spiny eel. He terrorized everything that got near the drift wood. Definitely needs a nice big cave or densely planted if you have similar sized/smaller tank mates. Would mainly recommend bigger tank mates tbh.

[@SP-sy5nq]

I wonder if thats why the reports of aggression are all over the place.Some people may be keeping them in too small a tank or with too little cover and features for the rainbow to claim

[@usnightm4re]

I got two Rainbow sharks on my community tank (75 gallon) and so far about 8 months everything working out! And the majority of fish on the tank are neon tetras and cherry barbs, cory doras, panda garras and 1 bristle nose pleco. The bigger rainbow chase the smaller sometimes when he invades his space, but overall they don’t mess with each other

[@TheAquaticCoder]

Glad to hear it is working out. You are lucky that they both claimed different territories and live in peace. I wish it was easier to keep multiple.

[@intergalacticmuffin7071]

what a wonderful tank nicely done on this love the aquascape and the stocking perfect.

[@TheAquaticCoder]

Thank you!

[@soccreyes4647]

Camon man, I've kept mine which is 4 and half inches with a 3 inch pearl gourami danios, corys, glowlights, a single molly, lots of platys and alot of rcs and a single dwarf mexican crayfish and she doesn't mind them. She eats with them, chases the schooling ones from time to time, but she doesn't harm them.

[@ShlingDing]

Thanks dude! Very helpful

[@dramaticexperiment144]

I got mine April of last year, he's had different tankmates since then from barbs, tetras, Swordtails, angelfish, bettas, guppies and pearl gouramis. The only fish he really didn't work with was the barbs, tetras and the Swordtails, everything else worked, I even have shrimp in the tank right now and he doesn't bother anything. I feel like everyone has a completely different experience and that when it come to them we should expect the unexpected because I find him to have a tantrum or act sad if he is hungry are if I change something in the tank lol. I really love his personality and think its an amazing fish to have

[@jumpballacademy2599]

Hey bro what happened w the sword tails? Ive just put a albino rainbow shark in with 3 of them aswell as 2 x angel fish. Very interested to see how it goes.

[@dramaticexperiment144]

@@jumpballacademy2599 I tired barbs and swordtails again and mine leaves them alone now. I guess it was an age thing. There's even a blue acara in my tank now that he doesn't seem to like but for the most part he leaves alone

[@jeanelbicho3]

Hello Coder, Thanks for the info this videos are really worth the watch. Lots of info and footage. And of course since is only one fish you get to see an individual experience the tank, the space, the tabk mates.

[@TheAquaticCoder]

Hi there, I appreciate the comment and the support!

[@jeanelbicho3]

@@TheAquaticCoder tank on my brother cheers from Costa Rica.

[@mondraymondo]

Oh! You kept him with cichlids! Thats perfect I've been looking for tankmate for my severum :)

[@TheAquaticCoder]

Should be a great tank mate for severums!

[@ShaneC025]

And thanks for your input

[@kyles5960]

Great video!

[@TheAquaticCoder]

Thanks for checking it out!

[@stevebomer7670]

Definitely my favourite fish, though from my experience, Redtails and normal rainbow sharks tend to be far more aggressive than albinos

[@guillermollamas7899]

DAMN bro.. Even when it comes to fish keeping yall racist af lol wtf you mean the "albinos" are less agressive???

[@Shukaku1928]

Your rainbow shark looks so cool! Hope its doing well

[@RDP5187]

Thank you for sharing your experience. I bought a glo orange rainbow shark bc it looked cool. Shark has reached about 4.5 inches and is not loving my school of glo tetras. Thinking of rejoining the tetras and finding some larger for him to hang with. I feed about the same as you just different brands. He’s been into blood worms. Just eats and eats and eats. Also my shark has taken over a quarter of the tank and won’t let anyone near. I’m going to upgrade to a 65 and copy your island cave style so maybe he won’t be so territorial. I’ve had him for almost a year. Would I get one again? Maybe he swims in my hands when I clean so he’s great comedy. Who knows maybe if I change the stock I’ll enjoy him more. He’s a monster I really didn’t expect it his big he was an inch when I brought him home. Now I’m going to check out your other vids. Have a great night

[@tracybrown4233]

Great vid.video.. been a Amateur fish keeper/ lover my whole life ❤️. I've pretty much stayed with tetra tanks the most, have had other types of themes. But I like the colors and masses of fish with the smaller choices. When these glo fish started becoming more available, I started exploring/ experimenting. About 2 months ago maybe 3 I got 2 "sharks" yellow and a pink..my tank has an abundance of cover,etc...they both act very Differently. The pink Dussel minds it's business very passive. The yellow basically has a pattern it swims visiting the different hiding spots. If it passive paths with pink he / they will do a "flexing" dance.and will move on.( I have filmed it would be happy to share). As far as aggression goes just that.....I did have an African dwarf frog That perished...... With the food competition I was not too surprised: :( .I know they are approaching adulthood. Solid 4". And hoping 4 the best. Been watching lately and found them working together, going down the same paths, with 2 interest points ( small cave like spots) ware they fan water over hard 2 see Exactly, but apparently maybe fanning on,,,,eggs or something (may just trash gathered there) I have read etc. Hard to mate..etc...looking for more info on mating practices...tytyvm. be happy to send any video or pics. Tyty

[@TheAquaticCoder]

Thanks for checking out the video and it's cool to hear about your tank. I know sharks tend to not get along so I'm glad that you have ones that are not causing problems. Since they have their own areas of the tank it sounds like it'll work out. I'd be happy to check out your tank if you want to post a quick video on here.

[@Jstroman221]

Have an 8/9 year old rainbow shark (couple of Old vids on YT should make more) still going very strong Tank planted. The aggression did amp up as he got older. To limit aggression I'd recommend feeding at night (close to lights going off) and do Not leave uneaten food in the tank they will smell it and stay aggressive in my experience. Def tank boss did well with corries, and small tetras (has out lived them all). Like the in the video did not get laong well with mollies but if you control the feeding it will go much better, algae wafers or sinking food at night with lights off. Your albino looks good keep it going and he'll be around for a long time.

[@TheAquaticCoder]

Thanks for the advice! That's interesting to hear about feeding at night.

[@4TheWiccanWay]

would love to hear more opinions on this ..I'm prepping up a 75 gallon long now

[@robertsparks9333]

From my experience they tend to have two levels of aggressiveness and it just depends on who they are with. Some types of fish they will be playfully aggressive with, almost like they enjoy seeing them move. Some types of fish they will endlessly chase. They won't put up with any other aggressive fish or nippers.

[@TheAquaticCoder]

Mine was mostly the first time of play aggressive. He did chase mollies a lot but as soon as they swam away he would go back in the other direction.

[@danaquatics4031]

Thanks for the video. I recently got a baby RTS (his tail is still white) and he's in a 75 gal with: 1 Pearl Gourami Female 1 Apistogramma Cacatouide 1 Cown Pleco 1 Red Eye Albino Bristlenose Pleco 1 Rams Horn Snail 2 Electric Blue Acara 5 Buenos Aires Tetras 8 Skirt Tetras I hope he gets along with the apisto when he gets bigger. my apisto asserts dominance on him, for now...and the RTS submits to him, for now....

[@TheAquaticCoder]

I think in a 75g they will do fine together. As long as you have a decent amount of decorations/plants my guess is they will pick their own territories. Best of luck though, it sounds like a cool tank!

[@danaquatics4031]

@@TheAquaticCoder thanks. I'll upload a video soon of the rts and the apisto hanging out. Apisto doesn't mind him now, but hopefully the peace remains when rts matures.

[@TheAquaticCoder]

@@danaquatics4031 Cool, I gave you a sub so I can see it!

[@TheAbbasb]

I have one black one i love it he live with molle fish and tiger barb in peace

[@TheAquaticCoder]

That's good to hear you had success with mollies. Those were one of the few fish that didn't work for me.

[@john.norris]

i just got a rescued adult rainbow. he was chill in the store, i got him home to a 55 and made a cool spot for him, and he desided the tank was his. he got all pumped up, and started acting all bossy. he's awesome. there is only 2 eels and a baby clown loach and he doesnt want them in there, so the tank is his, ill put others in another tank. he turned into a different fish when i got him home it was hilarious. he is very dark now, and red fins are almost purple. he acts like a pit bull. i kept making more hiding paces for eel and he just kept taking the places over. this peacock eel isnt the sharpest tack in the box either. in the dark they are ok but when light comes on shark bullies. i call him Moby.

[@TheAquaticCoder]

Yeah it could have been that in the store with all the foot traffic he was shy/scared. Probably felt comfortable in your tank that only had a few fish. Glad you are enjoying the behavior and can move the other fish.

[@john.norris]

@@TheAquaticCoderhe is going into a 125 in a few days cheers

[@2roly2]

A friend of mine had his tank leak so he had to rehome a few fish . I took the 3 of his rainbow sharks put them in my 30 gallon one of them died . Then one would be more dominant and wouldn't let the other one eat . So my only option was to set them in separate 20 gallon tanks . Since then the smaller one gotten bigger than the larger one . I tried to rehome them but couldn't get anyone to take them . The 20 gallon tanks are tall and so far the parameters are just about spot on . Both tanks are heavily planted . Both fish are in tanks by them selves . Funny thing is that they interact with each other alot . One of them is 6 inches and the other is around 5 3/4 . Had them both for over a year now . Figure I will just keep them as they are . Named them Burt & Ernie .

[@SP-sy5nq]

30 gal is real small for one let alone 3

[@2roly2]

@@SP-sy5nq you didn't read my entire comment

[@SP-sy5nq]

@@2roly2 lol I didn’t see the show more button

[@k9feces]

Mine loves to chase SAE’s, but they don’t seem to mind.

[@RogueLegend999]

My rainbow shark became best friends with my 3 yoyo loaches within the first 24 hours. I guess they really do get along well with loaches

[@ianplatt7435]

I have a albino rainbow shark with a African dwarf frog and I’ve never had a problem with aggression

[@nataleighguthrie4544]

I have an albino rainbow shark and he gets along with my Molly and blue neon tetras and my goldfish but once they mature the shubunkin goldfish are going to a pong and the shark will be in there with the molly a snail and maybe a few others

[@TheAquaticCoder]

I'm glad you have a peaceful shark and he is doing well in your tank! Mollies were one of the few fish my shark didn't like but I know others have had no issue with the combination.

[@ShaneC025]

In my experience u would have need more Molly's, when I first got my tank didn't know much of what I was doing, store said he would do great with 4 tetras, but he harrased them constantly, I now have 15 tetras and he actually swims with them sometimes and doesn't harrase them at all

[@TheAquaticCoder]

Yeah that makes sense. I had him with 3-6 Mollies and no more than that

[@fearthestroke8884]

Hey do you turn the light off ever in the tank or no?

[@TheAquaticCoder]

Yes I only keep the light on for about 8 hours per day. I'd say the amount of light depends on if you are experiencing algae. At the most I would only keep a light on for 12 hours a day.

[@lanoragarza287]

I wish the aquatic store i went to buy my white morph rainbow shark (black with white fins) told me how big they get before I put him in my 10 gallon. Im hoping to upgrade to a bigger tank soon but for now I have alot of coverage for him and my 3 black skirt tetras and luckily the aggression isn't too bad he just chases them when they get too close to his cave.

[@TheAquaticCoder]

That's a shame that they didn't tell you. I tend to see it be 50/50 whether they ask about your tank size and such. I have never seen a rainbow shark with those colors so I hope you are able to keep them long term.

[@lanoragarza287]

@@TheAquaticCoder im hoping to upgrade here real soon and get a bigger tank so he has more room. Ive had him for a couple months now. Looking at a 40 setup for the time being

[@memey5422]

I’ve had mine for 3 months and he is still growing I have him in a 55 gallon so how big do you think he will get

[@TheAquaticCoder]

Mine seems to have stopped around 5 inches. That seems pretty common from what I've read. If you're lucky he might get to 6.

[@caralynrussell1431]

I just got a “Glofish shark” (aka a variant) I was wondering if my shark would be okay if I got a micro spider crab !

[@TheAquaticCoder]

Cool! I hope you enjoy your shark! I've never kept crabs but reading a few forums about this question the general answer looks to be no. It seems like a good chance the shark will harass the crab.

[@Jasmine-gl5uk]

Thinking of moving on from other fishes I have kept and onto rainbow sharks, do you think it will do well alone in the tank as long as there are caves and planted? Or will guppies be fine to be kept with one of them?

[@TheAquaticCoder]

I think a rainbow shark would do well alone. They are known to be a solitary fish. Guppies might be a hit or miss. They are fast though so I doubt the rainbow shark will do damage but he might stress them. My rainbow shark harassed my mollies (also livebearers) but others had no problem. So it's 50/50 if the rainbow shark will bother the guppies.

[@Jasmine-gl5uk]

@@TheAquaticCoder thanks for the advice! I was thinking of heavily planted and maybe guppies with the rainbow shark having the whole area below for himself ! I always liked guppies but never went into there would love to have a community of them seems interesting. What other fishes would you recommend for Rainbow sharks?

[@knyghtryder3599]

Never like albinos,until I saw your fish, let me tell you there are petsmart albino rainbows (scrawny worms) and then there is your fish, hands down the best shark I ever saw !!!!!!! Great job it looks like you had been fattening him up as an x-mas goose, Hold onto this one it will give you amazing luck! Or sell it , but nothing less than $100 ,

[@yadiellatinopropmaker5289]

Rainbow sharks are indeed incredible when they grow, i have one with genetic defect, makes its color gray with white fins. My favorite rainbow shark.

[@arjunkarthik5470]

my rainbow shark is not going to the ground and it stays with the filter motor and even i have lots hide spots and only 3 fishes in the tank and its the only rainbow in the tank

[@tsafa]

Can the rainbow shark live outdoors in a pond through the winter?

[@TheAquaticCoder]

It depends where you live and how cold it gets. They can safely live at 68 F. If it get significantly lower it is a bad idea or you would need to plan for heating the pond

[@taverntimes6806]

Really want one. But I only have 125 litres /33 gallon

[@TheAquaticCoder]

They are so common so I'd guess they'll always be around. Maybe one day in the future you can upgrade your tank and get one.

[@katinkakyara]

I have a tank(150cm lenght,46cm deep and 61 cm high)aqualantis. I wanted to keep 1 rainbowshark(albino like this one) and 3 clown loaches. Is it possible in my tank,or is she not big enough. Grts from belgium

[@TheAquaticCoder]

Greetings! That is a great size tank for that stocking. I don't see any issues with it and it will support the clown loaches for their life. If they do reach their max size you could think about upgrading then but it would be like 7+ years. Even then this tank is big enough to keep them at a large size in my opinion.

[@ijabbs143]

I had cicklids for years. The Malibu type and got tired of the lone wolf scenario. There many nice looking fish but It would always come down to the baddest fish in tank eating the others and living alone until he died.. I give up on those. I have rainbow shark and he is to timid to come to and eat so your feeding advice is much needed,. He/she disappears and i have no idea if he gets any sinkers. I watched it it appears he never eats.. I have a loach and he will get all the sinkers. The shark isn't growing.

[@TheAquaticCoder]

That's a tough one because loaches will just eat and eat from my experience. I've dealt with Clown Loaches and Yoyo Loaches eating until their stomachs a noticeably large. What I would try is: 1. If you Shark hides in one area feed the loaches away from him and try to drop a few pellets near him after the loaches are busy. 2. Try Frozen Brine Shrimp. As it melts in the water you get a lot of little pieces floating through the water. Hopefully your shark will grab a few. They sell these in a fridge near the fish section at Petsmart/Petco and most local fish stores.

[@gavin7158]

My rainbow leaves everything alone in my tank except my tiger barbs he chases.

[@hamiltonaviation6145]

I have a baby albino, how long does it take for them to reach full size?

[@TheAquaticCoder]

I'd say close to a year. My experience was they got to 4ish inches over the first 6 months and then the last inch or two took another 6 months.

[@bowtiejake]

I'm getting a 55gal and want a rainbow shark would like more then one but it dont seem to be the ideal thing. What other fish would you recommend to keep with the rainbow sharks and possibly how many? Was thinking turquoise rainbow like 3 or 4. But I'm not sure what else. Trying to learn but info is everywhere with these sharks

[@TheAquaticCoder]

Yeah more than one is not ideal. The reason the info tends to be everywhere is because some sharks are very aggressive and some are pretty peaceful. The only species I had trouble with them picking on was Mollies but others told me they had no trouble with this combination. The general rule of them is not too have other fish that could look similar to the Rainbow Shark. Otherwise fast moving fish are a good bet. I think the Turquoise would work without any issues. Any other fish you had in mind?

[@bowtiejake]

@The Aquatic Coder ok yeah after some research after posting yes only gonna go with one. I've thought about gouramis(blue) not dwarf. Also thought about zebra danios about 6 of the danios.

[@TheAquaticCoder]

@@bowtiejake All of those sound like a good idea to me!

[@bowtiejake]

@@TheAquaticCoder do you think I should get one or 2 gouramis

[@TheAquaticCoder]

@@bowtiejake I personally would get 2. That's only because I think the tank will look nicer with two. I've never kept Blue Gourami's but from what I know they should be fine kept solo or in pairs

[@alanwang4958]

Hi, i want a rainbow shark in my 55 gallon, it is a 55 gallon with a few hiding spots, and I wanted to know if this could work, and what I could do to improve it Rainbow Shark(Duh) 2 Pearl Gouramis 6 Panda Corys 6 Cherry Barbs

[@TheAquaticCoder]

I don't see any problem with the combination. The tank size looks to be plenty big for all of those fish as well. I say go for it!

[@danielvibez387]

Nice vid man! Any advice as far as identifying gender!?

[@TheAquaticCoder]

Thank you! In my opinion it is kind of hard to tell unless you have a few to compare. I never tried with mine but I gave them a male name when younger so I didn't really care to find out lol. Overall though females are known to have a thicker body. Males are known for brighter fins and having black streaks on the back fin. If you see the black streaks on the back fin that is likely the best way to determine.

[@eligalvan8515]

What about my pleco? He's about 6 in long. Would he do good with a rainbow shark?

[@TheAquaticCoder]

I have not tried to combination personally but it seems like they usually get along from my research.

[@debrawalters9007]

How red sharks i got they get a foot long do u big to they big

[@elryopark8318]

How big of a tank would I need to keeep rainbow shark and clown loaches

[@TheAquaticCoder]

While the Clown Loaches are small (less than 6 inches) a 55g or 75g will be fine. Once they get to 5+ inches I'd start thinking about a 100g+ tank. So a 55-75g for the first 3 years will work if you get the Clowns small. Then for they're lifetime you'll want something like a 125g.

[@naturelovergamer5023]

Can i mix them with my 2 goldfish in 36 gallon tank??

[@TheAquaticCoder]

I would not recommend that. Goldfish tend to be pretty slow moving and the Rainbow Shark is likely to pick on them. Also I'd highly recommend a 55g for the rainbow shark once they are an adult.

[@Riley095]

For these guys I think a 75 gallon does well.

[@enigma533]

Plakat with Rainbow shark? Fine?

[@debrawalters9007]

How long does a shark red get how long does it get

[@TheAquaticCoder]

Rainbow/redtail sharks get to about 6 inches

[@larryhenry719]

How can you tell if it's male or female?

[@Basketballuser]

Where do you get the tat cave

[@TheAquaticCoder]

I made it by stacking Seiryu Stones. You can get them at many fish stores or aquascaping stores online. I just played around with arranging them until it looked like a cave I was happy with.

[@amandaslevin6659]

Mine is harassing my black gold fish:( what should I do ?

[@TheAquaticCoder]

A rainbow shark and goldfish are two species I would not recommend keeping together. If you can keep multiple aquariums I'd suggest that. If not then likely having to rehome one of the two species.

[@mason5408]

I got a rainbow shark for my 10 gallon because the store said I could, im starting to think that was a mistake because its been terrorising all my other fish the whole time

[@TheAquaticCoder]

Ah that's unfortunate that they told you that. It'll probably just get worse as they keep growing. I'd see if the store can take them back if you don't have any other tanks you can move them to.

[@yadiellatinopropmaker5289]

This is due ti the size. They need 29 gallons at the least to be comfortable with other fish, they can grow 6 inch. Mine has gone from 2.5 to 3 in 1 month. I have 3 in my 29 gallon and theres always a bit of territorial display but not terrorizing level,its their nature, they need space so agression can dissipate.

[@jessajane4656]

Hey Connor I'm in a rush and my tank EXPLODED last night fried my filters and bubblers do they need oxygen my are my sharks going to die in my snail tank 😭😭😭😭 I do not have a way to get to a pet store until 7 pm tonight

[@TheAquaticCoder]

That's awful to hear! They need some oxygen but for a day they should be fine. It really depends how large the snail tank is although small I'm guessing. If you have any buckets larger than the aquarium that could be an option to keep them in for the time being. But hopefully you can get to the pet store tonight and try to get a cheap set up that is large enough for them.

[@jessajane4656]

@@TheAquaticCoder thank you i have 2 more 55 gallon tanks but no water or electricity I have no clue how this happened total shock but without electricity I don't have a system to keep oxygen in the tank do they go to the top at all to gather air? Like my koi do ?

[@TheAquaticCoder]

@@jessajane4656 I have not seen them do that often in my experience although they do need some oxygen. As long as there is a gap between to lid of the tank and the water so some oxygen is there I would not worry about that. Hopefully you can get electricity again because I'd be worried most about having filtration if they are in such a small tank.

[@Axtacy]

Why does my rainbow shark sit at the bottom at the end of the day

[@TheAquaticCoder]

I've noticed that with many bottom dwellers. Corydoras, loaches, and my rainbow shark would all have periods of inactivity. Are they active during the day and during feeding?

[@Axtacy]

@@TheAquaticCoder mine is active during the day and during feeding times

[@dkHI186]

I had mine for 4 years now and he's not as big as urs how u get ur albino to get that big also my algae eater use to chase and harass my albino

[@team5kv500]

Can u have 2 rainbow sharks together?

[@TheAquaticCoder]

No that is not recommended. If you have a very large tank (125g or even larger). Then people have had success keeping 5+ since the aggression will be spread out.

[@sweettards5039]

could i keep one with 5 danios?

[@TheAquaticCoder]

He might chase them a bit but they are fast so I don't see a rainbow shark ever injuring them. I'd say if you have a 55g or larger tank it should be a fine combination. If you have a 29g then it's a maybe.

[@sushmacs1901]

I have a female rainbow shark and she didn't kill her tankmates

[@myoko2907]

they need oxygen or not

[@TheAquaticCoder]

I don't think they need any extra oxygen than normal. I like to always keep at least one airstone per aquarium but I don't think they have any special requirement for it.

[@sushmacs1901]

Your rainbow shark is a female because she is ronud