Cool idea! Nicely done.I bought black egg crate from Bulk Reef Supply. I made a frag rack with multiple levels for my Quarantine tank. This way I have the ability to move the frags up if they need more light before they go into my tank. Just built it last night
I am thinking of making a fragg tank and doing a double stair aspect like this with a point in the center and lower on both sides. This will go the full depth of the tank.
I use Silicone to bond it. The same one we use in the tank.
Just fyi, it will be in the lighting section by the longer industrial lighting. If you ask a HD employee where the egg crate is, they may look at you like you are crazy =). That's what happened the first time I asked someone at HD where the egg crate was at least, lol.