hey i recently set up my tank its a 55 gal and so far i got a 3 inch oscar, 3 inch jack, a 3 inch pleco and 3 silver dollars (2, 3 inch and 1, 2 inch). they all get along pretty well but i was just wondring what people think of the mix! it seems to be working atm and i know as they develop they will become more terratorial, but having them all together at a young age should help!