I currently have a 75g a 20g and a 10g. The 75g has polys, and i am planning to get rid of the 10g and the 20g. I am planning on getting a 125 and trading the 75 for a 40g (just what i'm thinking hasn't happened yet). I could make the 40g a grow-out tank for grow-outs and have a short body senegalus and a rope fish as residents? Then again these are just thoughts I just wanted to hear if anyone had any better plans? Thanks for the Advice Dr.B 