I'm going to try to make some naturalistic caves using silicone, PVC pipe, and gravel. Now, I've been seeing tubes of silicone sealant around...is that the silicone I would use for sticking the gravel to the pipe? Because those are pretty small tubes...anyone tried making caves?
Make sure the silicone says aquarium safe or something like safe near food. I always buy the silicone from a pet store. You can buy the big tubes you put in one of those grease guns if you need a lot. I think I 'paid $8.00 for a large tube, but then I didn't have to worry about using the wrong kind.
Neat site Gammerus. I read on there something about using duct tape to make things. A friend of mine bought me a "duct tape" wallet for my birthday. It was real ductape. We watch the RED/Green show and they joke about that a lot. 8)