So, I just carved out some spots for caves made of 2" pvc that I had a couple extra pipes of. I siliconed in the first to see how it would come out. The foam expanded HUGE, so I had to spend ~1 hour trimming. What do you guys think?

Name: 001.jpg Views: 790 Size: 58.1 KBName: 002.jpg Views: 508 Size: 64.4 KBName: 003.jpg Views: 506 Size: 56.2 KBName: 004.jpg Views: 481 Size: 47.0 KBName: 005.jpg Views: 478 Size: 60.3 KBName: 006.jpg Views: 416 Size: 53.9 KBName: 009.jpg Views: 454 Size: 68.9 KBName: 010.jpg Views: 631 Size: 64.0 KB I ripped the pump out of my mom's water fountain, and it had a light attached...I might be able to stick it up out of the "ground". Or I'll cut it and cover the wires. Not sure yet, but WOOHOOO, I have waterfall! I am going to make a false bottom, with the pump under it. Then I will make a great stuff pond on top of the eggcrate, with a small drainage hole so it keeps a set amount of water in it, and the rest keeps getyting recycled into the bottom. I'm gonna run 1 inch PVC up the back and that will contain the electric wires so I have remove them as necessary (Conduit). I am going to carve a stream and put in rocks and all that stuff. I'll have a rubber tube running from the pump up the back and exiting into the stream that empties into the pond. Good plan? I think it will work great, I have it all envisioned now. Let's hope I don't screw it up.

EDIT: Sorry about the low quality of the close ups. the clear looking thing is the lighting fixture thing. it is fully enclosed.