Bloody hell Jenny! All that and you maintain a 'Dub too??? I only have two tanks with a third getting ready, and the third is only there to breed food for the "inmates" of one of the other tanks! I'd love a big setup, but starting to wonder if I REALLY want a big setup or not? My tanks are lovely as they are! That said, I think the reason is that the two tanks look after themselves, especially my oldest tank. A weekly partial water change and hoovering of the gravel is all thats needed, it's got a lovely balance and the fish are always very happy. Have only ever lost three fish in the two years I've owned it. One was because it got beaten up, one because he was a sickly fish and just snuffed it and one because it was a coldwater Chinese Hillstream Loach (my mate managed to smash his tank, so he grabbed the fish, chucked it into a cup of water and we temporarily housed it in my aquarium. Could we catch the bugger after that? Could we hell!). I think I just want a new challenge. I'll sell my tanks and go marine eventually, but not for a LONG LONG time!