just a thought but if you still want to try schooling fish you could try some blue eyed cardinals.... I had 3 chalk bass in my tank and they would pick on each other maybe if you added it all the same time they may get along however the B.E. cardinals school for sure. I recently bought 7 and they're all doing well the first few days they all hid but now they are out more frequently if you feed them a mix of mysis and colour enhansing flakes they glow a nice blue in their eyes and belly also get orange stripes. Aftr seeing how well they school I want to add another 13 to make a total of 20. Here is a pic I googled to give you an idea. Hope it is helpfull.
http://images.google.ca/imgres?imgur...%3D2%26hl%3Den