Heh, yesterday, Britt and I took a random drive to the beach (Panama City Beach)! While walkin along on the sand, we started noticing TONS of shells! So, we started pickin them up. There would be enough to either place these in the tank (or sump) whole and probably cover the top layer of sand (not that I'd do that.), or I could crush them up and have alot as well...
Would these be safe in a reef tank? Is it reccommended?
I'll post some pics of them and some of the beach as well...
BTW... The water was EXTREMELY clear this time of year!