Who makes plexiglass caves for their fish? I just use my left over plexi to make caves on the sides of my tank for my fish to hide in. Today I tried drilling holes in it so that water passed through better and so the gobies could get in easier, but that didn't work as planned. I am thinking about making something so that the gobies can go hide in and the crab can't get to them because even when they hide in the cave he can get in there and get them. I think he already got one of the gobies, and I don't want to lose anymore because I am getting them their own tank eventually.
