Caution: Cabbage Leather (Flower Leather) sloughs off its waxy coating as a purgation process. Some varieties of Cabbage Leather (Flower Leather) secrete a toxin called as Terenoids Toxin. This toxin may harm or kill some other stony corals in your tank, if they happen to come in the vicinity of the toxin. Therefore, remove the sloughed off wax from the coral as soon as possible.