My 29 gallon has one blue gourami (tank centerpiece) 6 gold barbs, 5 glow light tetras, 3 neon tetras, 1 African dwarf frog, 1 long finned Corydora and 1 bristlenose pleco. Probably a bit overstocked but I have an aquaclear 50 HOB filter and do a 50% water change every 2-3 weeks. Aside from the...