Ok here's what has happened. A friend of mine adopted two Molly's in a nano tank (yes I know) after consulting with me about the best thing for the fish I managed to get him a second hand 130 litre tank I gave him my old internal filter a juwel one for Rio 125 got everything clean and added cycle then put the fish in. Not ideal I know but better than the fish not being able to swim. That was week ago so I phoned him this evening to see how it's going and he says hes added more fish. Needless to say there where a few expletives from me. He's added some glow light tetra 6 I think, 3 more Molly's, 3 guppies and a plec (don't know what type). I need to know a water change schedule for stocking that quickly and if there's anything else should be looking out for. I've been in the hobby for about 8 months and he's been in it for five mins so we don't exactly make the best team. Any help would be extremely appreciated.