I have a 10g african tank with a pair of julidochromis transcriptus and an upside down catfish. The julies will reach a size of 2-3" and the cat will get to be 3-4". This is a good setup, with lots of caves and rocks and 1 java fern plant. I do regular water changes and the fish look great. I hope that the julies will breed (may have to remove the cat). Theses are fairly expensive fish, but are small and beautiful. Highly recomended for a small tank.