I have some mushrooms (ugly Brown ones) multiplying out of control in my tank. I added one that I received as a freebie a while back now there are like 6-7 popping up from under my LR. I was advised ti inject them with "Kalk" to kill them. I have some "Calc" that was in a Red Sea Reef Success kit. Is this the same? It says on the side "contains blended metal salts". Thanks!