1st foam project have a few questions

Bamm Bamm

Saltwater Guru
Ok so the ultimate goal is the the back wall on my 210 when I set it up but for the meantime Id like to build a wall for the back of my 62g Lee Mar and rearrange my rockwork in the tank..

Planning on using eggcrate(light diffuser) for the back and zipties small pieces of rock and dead coral to it also going to build a frag rack into it out of eggcrate for my zoas Im growing out..

From what I've read I need to find some of the pond foam?? attach the big rock with zipties or epoxy or both then spray my foam where I want it and sprinkle it with sand to make it look more natural....

a few questions

What foam do I use and where do I buy it?
how long do I let the foam dry before sprinkling the sand?
How long do I need to wait before putting the wall into the tank?
Does it need to be cured in water or saltwater for a certain number of days?

Please lmk I'd hate to let it dry a week find out that not sufficient and then kill a few grand in corals=) thanks in advance..

Dan:spin3:
 
anyone? Also I just picked up an acrylic 90g today with dual overflows so i'll be doing the background for this tank..
 
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