Hello all. I am new to the RCS game. I have a planted 33 long with fish, but I want a smaller tank dedicated for RCS. I know they don't need as much space as fish do, but I'm not entirely sure what would the best size be to go with. Currently with my budget, my best guess for my own personal up would be a 20 long. I wouldn't mind a 30 breeder or 40 breeder though either.