Thanks everyone. I really appreciate everyone taking the time to look and comment. We keep going back to Josh's Frogs and reading the same things over and over on each species. We think all of the dart frogs are awesome, we just haven't narrowed it down much yet. We want something active and brightly colored to contrast the greens of the tank, and something that does well in groups. Other than that we are open to anything. Thoughts?

About the hood...It had a few gaps in it where it hinges. I siliconed a strip of screenover the whole hinged area, creating a sort of mesh piano hinge. Just to keep things inside. Is there a reason I couldn't leave the hood light in the "on" position and plug it into an on/off timer?

Nick, the mesh is just from a roll of nylon window screen. I used three layers. The first layer covers that false bottom grate and keeps the gravel on the sides and back from getting in underneath. Once that was in place, we poured gravel in around the false bottom up to the same level as the top grate of the false bottom. The other 2 layers are between the false bottom.