This sale isn't as good as it used to be, but you can pick up a 10/20/29 gallon at Petco for $1 per gallon and a 40b 50b and 75 gallon for 50% off now through February 3rd. This is on the Petco Website for the Detroit area, but probably applies to most of the country! Just wanted to let everyone know where to pick up that cheap sump or QT tank!