DIY Rock Wall Questions - The Planted Tank Forum
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post #1 of 3 (permalink) Old 11-04-2012, 07:24 PM Thread Starter
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DIY Rock Wall Questions

I'm considering building a rock wall back ground for my aquarium. So far from my research I know egg crate and zip ties are the way to start your base. Then use Great Stuff expandable foam to create your actual wall formation. My question is what epoxy do you use that is aquarium safe? Also what 'paint' can you use to color the wall, or is it best to add crushed rock with sand to the formation while the epoxy is drying.

Any ideas and tips are appreciated!!
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post #2 of 3 (permalink) Old 11-04-2012, 11:41 PM
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This might help some.

Shows you how to and products used for nice DIY rock background.

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post #3 of 3 (permalink) Old 11-05-2012, 09:36 PM
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I've done set ups just using styrofoam coated in an epoxy/sand mix (I've also used polyester resin, but getting the mix right is trickier, and the fumes are pretty bad).

I've usually used the two-part pour on epoxy that you can find in a lot of craft stores, and sometimes even lowes/home depot. just mix up a batch, throw in a bunch of sand, apply it to the styrofoam, and dust some sand on top (just makes it less glossy, and wouldn't really be needed if the piece is submerged).
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aquarium background, diy, rock wall

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