Finally got everything up and running, doing a final once over before setting the sump in the stand and with all the heat and humidity lately, one of my top boards warped. 
It is only off by about 2mm. It is an open frame stand (no plywood on top). This is my first tank with a tempered bottom and I am finding mixed results. Should I just stick a 1/2" piece of foam underneath it? 
I have never used foam under a tank before, but I have a habit of gluing all joints so it's probably my best option at this point. 
It is only off by about 2mm. It is an open frame stand (no plywood on top). This is my first tank with a tempered bottom and I am finding mixed results. Should I just stick a 1/2" piece of foam underneath it? I have never used foam under a tank before, but I have a habit of gluing all joints so it's probably my best option at this point. 
