Hi and a little help from a new member

IMO, I think actual dry rock from;
Aquarium Rock for Saltwater and Reef Aquariums $100
http://reefrocks.net/index.php?page...&category_id=1&option=com_virtuemart&Itemid=1 $85 plus they'll send you 40 #s of great sand for $15 more

Are way better options. The actual dry rock seemingly has TONS more surface area than this rubber stuff, so your bio filter wil be a lot bigger, and will be able to home many more little critters like pods, worms etc. Which very shortly will become LR with the addition of a few pounds from your LFS.

Plus it seemed like the piece in the video kept wanting to float away. This lack of weight to the "rock" would concern me. A turbo snail, urchin, fish etc could probably knock this stuff over pretty easily, and thus harm corals.

If ya do it, post a thread of the build for us to see

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