ow ok. he will be the biggest he is going with a heros rotkeil, and notatus, 2 red head tapajos, altifron, brasiliensis, 2 keyholes, a pair of red ceibals, a pasiones, two yo-yo loaches(probably going to sell) and a L75 pleco in a 125g 6'. We had a little problem with the water cause of farms but we are now running the water through a pur 3 stage filter and prime and that has helped a lot. i know its not 100% perfect water for them but everything i own is fine on it and growing fast.