This is a great idea. I suspect the pond is in the basement due to the weight but have a few questions: -what's the diameter of the pool and depth of the water -if the pool is indoors, do you have a problem with humidity or do you use dehumidifiers -also, is the pond sitting on a platform or directly on the floor I have lots of pond liner left over from the ponds I built in the yard and lots of extra space in the unfinished basement, so this would certainly be a great way of reducing the number of tanks that I'm using and increasing the area that the fish have.