GDawson said:
Joost_ - are you going to post the concrete process you used for the aquascaping? If not do you have links to the process? I really like what you did for your tank and might like to do somehting simular in the future. I did some Google-fu and came up with aotherr process for fresh water tanks and ponds...but they specifically said it was not for SW applications as the styrofoam broke down in a marine environment.
-Gregory
Sorry don't have any pics
So this is how I made my structure but there certainly is room for improvement on which I'll elaborate more below:
What you'll need:
-styrofoam
-silicon
-cement
-brush
-knife or similar for carving
1. glue sheets of styrofoam together to preferred thickness with silicon
2. carve out styrofoam, you can add tunnels and stuff in the back
3. add layer of cement with brush (don't add cement to back)
4. let dry for 48 hours, add plastic cover otherwise rock dries to fast and becomes very fragile
5. allow sufficient time to cure in FRESH water, doing frequent water changes will speed up process. You can also add vinegar or other weak acids
6. glue the back to glass with silicon
7. enjoy tank
I think with my next tank I'll make a mold for the rock and just pour a this DIY LR mixture in there:
http://www.reef-eden.net/diy_9.htm
The plan is to add strong magnets and some strong clear cord attached to the canopy to suspend the rock, I'd probably add some kind of floater in the center too to decrease weight.