I have a Red Tail Catfish that I count as part of the family. His name is Poseidon. But, I ran into an issue with my current tank. Well the tank works fine.. But, its not quite big enough to support him later on. Right now he's about 6 or 7 inches big and is currently inside a 46 gallon bow front fish tank. I am not quite sure how/what I need to build him a bigger tank. I would like to make a 300g tank or something close to it that way I don't have to worry to much about him. As I don't want to give him back to the store since I don't want someone else hurting him or killing him. I really need help with this. Thank you so much.