Holy crap does this thing make changing water in aquariums easy! http://www.pythonproducts.com/nospill.htm Got my 55 gallon set up now. I moved the barbs and the oscar over to start the cycle on that aquarium. Hopefully with some careful attention and water changes they'll survive the cycling. If I would have thought this out ahead of time, it would have been better. I'll manage I scored the 55 gallon for free, so that leaves my budget open still, sans the money I had to pay for filters and pumps.