I have 3 5" Reds in a 37 gallon. This will soon be if not already to small for them. What should I do? Sell them and buy another piranha? What kind of piranha could last his life in a 37 gallon? Can a Geryi?
If you decide to stay wit the the 37 gal, I consider trading in your RBs for a solitary fish. If not, just upgrade to a new tank. YOu have a near matured RB, and to get rid of them at this size would be a waste. Plus if you do decide to get babies again, your going to have to deal with the same problem over again.