I've also put rubber mats under the tank to help prevent "denting" of floor materials. It helps to smooth out weight distribution over textured flooring. You can buy it by the foot at Lowes or Home Depot. For stands that have legs, I've used 1/8" rubber squares that are used to set mobile homes on their bases to ensure good contact/distribution.
BTW, treated plywood is treated with alkaline copper quaternary. I would not recommend it's use around the tank.
BTW, treated plywood is treated with alkaline copper quaternary. I would not recommend it's use around the tank.
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