LilBangarang
Aquarium Advice Activist
Okay thanks... i live in ohio so it's not illegal though
murad said:awight sorry um i seen 3 red belly pirhanas in a 10g for a display tank in petstore they had them for almost a year in thier so i guess you can get small red bellies till they grow big u can upgrade
Fishkeeper26 said:I didn't suggest any other fish, if he wants a piranha the tank sizes have been listed above. However it is harmless to recommend other fish that work in a 20 gallon tank.
tetras are in the same family(I think) as piranhas haha
Oh!!
Principal question!
20 gal is to small for even one piranha!
At least 55 gal for one or 100+ gal. for a school of 6-7.
In 200+ gal. and well feed they can have lots of tankmate!!
For a 20 gal go for a Purple stripe goby, leopard bushfiah or one spot bushfish, leaffish, puffers, dwarw "red fin" snake head (4-5 inch adult size). Thats all carnivorus type to and they fit in you tank.
But remember that canivorus fish are very messy, need lots of maintanance in the aquarium and filter. So better 2 filters, or a big one that goes for a total of 4-6 time the volume of the aquarium when dealing those fish!