I just got a 125gal. tank with one juvenile O in it. I want to get a knife for it but I don't know what kind any advice.

AquataHolic420;749162; said:Glass Knifefish... Clown knives are too common.. royal knives are common too.. im not saying glass knives arent common but they wont outgrow your system, and they wont kill the other tankmates... And it looks awesome... all mine eats is bloodworms, brine shrimp and tiny pieces of worms i cut up...heres a pic.. not the best pic, but u get the idea...![]()