[scumchug]

The coralline will turn white, but shouldn't take long to come back. Cooking it for only a month is useless.

I have at least 100 pounds cooking at any time. I cook it for as long as it takes to not test any nitrates or phosphates. I change the water once a week at the minimum. run a skimmer, heat the water, and have a couple power heads going. Every week when I change the water, I take the rock out, scrub it with a brush, and rinse it in clean water.

The rock I have cooking right now is the worst I've ever done. Its been cooking since October 13th, and still testing Phospates at 0.25. It should be done in another 3 weeks to a month.