hi there as im a bit of a newbie i was wondering if anyone could tell me if ive overstocked my tank all the fish seem happy enough havent had any water problems etc i have in a jewel rekord 70 (70 litres) 10 neon tetras. 7 glowlight tetras. 2 mollys. 2 guppys. 1 red tail shark. 1 plec he will be moved when hes bigger. 1 betta. 1 clown loach cheers in advance. 