My DIY Rock Cave

**Cliff** · 03-13-2010, 07:40 PM

Here’s my DIY cave project for my tank. I took the idea from a DYI project that was posted by Northernguy.

I started with a 3 inch ABS, TY. They cost just under $9 at home depot. I sanded down the inside edges. Now that I’m down it just occurred to me that I should have gave the outside of the ABS a quick sanding with the fine grain sanded paper to help the silicone stick to it.

I wanted the cave to match the rocks that I already have ion my tank. I used 2 small bags of dark colour, natural riverbed stones that you can buy form Wal-Mart for approx $2 to $4 per bag (I forgot how much).

I started by attaching the bottom row of rocks the ABS TY and then let if dry overnight. I used black coloured aquarium silicon so it would not be noticeable. Bought it form my LFS for $18. You can find silicone that is just as good for about $3 but I didn’t want it to be noticeable.

Once the bottom row was dry, I glued the next one on top of that with the black silicone

I kept repeating the process allowing it to dry overnight until I reached the top of the ABS TY. I added extra rocks to try to make it look more like a natural pile of rocks.

It think it matches the natural look I was trying to go for in my tank.

Let me know what you guys think