Hi, my biowheel power filter has quit working altgether, I have tried everything I can but its still not working, have to exchange it tomorrow but I am worried about the fish , I have 2 bubble wand in tank, and I just put in a smaller power filter(that I got with the tank set-up), its better than nothing but it not a Bio wheel, what do I do with my wheel till tomorrow? can I float it in the tank to keep good bacteria alive? or should I leave it out ? and when I get new power filter should I still use the old Bio wheel? I have just got the tnak nice and clear and the reading ok, now this happens, I even called Marineland but they advised me to exchange the power filter, I have a 20 gal tank. The power filter I am using is ok but I don't think its as good as the penguin filter. Any advice would be appreciated,, thanks.