i set up my 55 FO tank thinking crushed coral was the best way to go. boy was i wrong. is there any way possible that i can convert this crushed coral to sand. the tank has been up and running with fish in it for about 3-4 months. i have about 65-70 pounds of live rock. a six-line wrasse, 2 bar gobbies, a baby skunk clown, coral beauty, and a firefish. my inverts include two star's, 1 cleaner shrimp, 1 pepp shrimp, four red legged hermits, and a bunch of snail. just to let you know i do not have a quarantine tank or anything to cure the sand prior. i don't know if that would work anyways.