Hiya, thanks for all the help the other day, it was really welcomed. We took ALL the fish back to various local shops that said they would take them and rehome them, and bought 10 Harlequin Rasboras just to try and keep the tank cycled. We have been testing the water and all seems ok, but is this enough fish to keep the filter ok? It's a 100 kitre tank and we dont want to get any more fish if possible until we have had a good look at which ones are best.