How do I make a cave and other decorations for my tank? I've got a 30 gallon tank with two goldfish in it. The tank is more or less bare. I haven't gotten them any decorations yet. Anyone know any good websites?
mnruxpin said:take the pvc idea, but rough it up with sandpaper, then cover it with aquarium sealant, then dust it with sand or push aquarium gravel into it. let it sit a couple days. instant mainetance free cave that looks natural, but adds no weight or stress to the tank.