hi, i know about the old rough rule of 1" per gallon an all that, but guessin thats probably a fairly out dated concept now? Better filters, heavier, healthier plantin etc! i have a 240litre high tech tank which will be well planted, only 3x hourly filtration at the mo but plannin to double that at least. The tank is 10 days in and i have 6 danios, 4 ottos, 3 very small sae's I probably shouldnt have put the danios in but wanted some excitement in there! :-/ So i'm plannin to add 5 more ottos in the coming weeks. Maybe 6 or so small cories. Also some shrimp of some sort. The rest of stock will be a school of smallish tetra, undecided on type at this point. What size school should/can i comfortably have? Also any suggestions for a couple of larger type fish that would maybe fit in with the rest of stock? (pressure from other half) :-/ she wants angel fish, i put her straight on that one! But i was thinkin maybe silver dollars or simular? Also when is it "safe" to add shrimp? Any input, thoughts or opinions gladly recieved!