After reading about the 1 inch of gallon space per fish to your tank I am a bit worried that my tank is overstocked, I have a 11 gallon (UK) tank L60cm, W30cm, D30cm... I have x8 platys, x2 Sunset Gouramis, x1 Sailfin Molly, x1 Flying Fox, all the fish get on well but am worried about it being overstocked now. Please advice as dunno if to take some fish back to the shop.