I plan on moving my fish into a larger tank but only have the one filter so to avoid cycling could I drain my own tank into the new one then add water or will this still remove the bacteria I need , this may sound silly but I have never transferred a whole aquarium before and donāt want to get it wrong any advise would be great I also plan on upgrading my filter should I use all the old material from my old filter in the new one or will my water hold enough bacteria to do a complete filter change ?