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Hello, I have dilemma on my hands, i had a leak in my 29 gallon aquarium and had to do an emergency tank swap. I am glad to say that my fish are all safe in a 15 gallon aquarium that was not being used. I am just glad i was around when the tank started to leak. My question is I am looking for 2 or three fish that are of a decent size that will live in a 15 gallon aquarium with two bichers (3-4 inces) and a small ghost knife. This is a temperary setup for them, i am waiting for the time to fix the 29 gallons leak and put them back in there. But i am just currently looking for 2 or 3 fish that stay in the middle section of the tank (non bottom dwellers). thank you

john

(ps. i am aware that a 15 gallon and a 29 gallon aquarium is too small for bichers. Im just waiting for the money to buy a much larger tank)

I wouldn't recomend putting anything else in the 15 gallon. Just wait on your larger tank, otherwise you would probly have some issues with more fish in the 15.

I wouldn't add anything else. The fish you have in there are/will be too large for the tank, and you don't want to make that worse. Also, knife fish are known to eat smaller fish, so adding anything small enough to not make an impact on the bioload would likely be trouble.

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And when he gets to Heaven, to Saint Peter he will tell: "One more Marine reporting, Sir! I've served my time in Hell."

Every fish, as long as it passes water through it's gills, makes a significant impact on the bioload--not neccesarily through solid waste, but rather, ammonia. However, I really wouldn't suggest keeping the BGK, as they get to 20" in length, and require a HUGE aquarium to keep happy. There shouldn't be any predation between the birchirs and BGK, though.

If u manage to get a larger tank(75 - 100 gallon ? ), suggest you put loacher, bala or red tail shark.....the size of these fishes of course must be bigger or at least big enough so that they wouldn't get eaten by your bichir n BGK.

Suggest to this few fish because they r peaceful and grow big enough to be with your bichir and BGK in the same tank even in the future too.

What is more, with good water and proper care, those bichirs will be 8"+ in no time....no reason to overcrowd until you get that big tank.