i have 6 gourami's (gold, blue, banded, paradise, sunset and dwarf) in a 29 gallon tank. does anyone know what kind of fish go well with them? and how many? i dont want to overcrowd it. ive heard danios or tetras, but i dont want them to be too small. also i was thinking a rainbow shark? im not quite sure. just want to keep my fishies happy.