Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I use a cushion under all tanks for several reasons. Mostly I use 1/2" styrofoam, which may not be the best looking, but is cheap, easy to work with, and does the jobs I want it to. None of my tanks are ADA tanks.
1) I keep my tanks on home made stands, and, lets face it, my carpentry is not up to cabinetry standards. The styro smooths out the minor imperfections in the wood.
2) I keep most of my tanks in a greenhouse, and I am only just now getting around to better temperature regulation. The Styro provides some insulation under the tanks, even when the stand is mostly open.
3) I have a few acrylic tanks, and they are fully cushioned, not in contact with the stand.
I have seen several versions of black matting that could work, and look nicer. There is a store near me that sells a lot of things to people who use trucks to haul small trailers, such as a pick up hauling a tool trailer or boat trailer. They also sell bed liner and other protective things, and one of these is a sort of flexible matting that could work under aquariums. I am not sure what they sell it for.