Oh, and the tank that they're in is 60"x 18"x 24" deep, but should there be any serious blood letting- I have an empty 50T, a 40 gallon growout, and 2 heated tropical ponds. I'm also gathering parts for a plywood 8'x 2'x 2'. I'm also trying to figure out how to reply using multiple quotes... but that's apparently over my head. Remember kids, the Reverend says- be cool... Stay in school