Yeah definately I have foam under all my tanks, I think its good to use especially with home made stands. I see it as kind of an insurance policy for stands not made perfectly level.
I have with acrylic tanks but not glass ones...btw where did you order your tank?



My tank for the center stand is coming this weekend... I got these 2 rays; the bigger one is going in that tank with some large bass eventually...
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What kind of filtration are you gonna use for the set up?
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killer filtration, that's going to be beast!!