Will vinegar kill bryopsis? When I do a water change the rock that has most of the bryopsis on it, becomes exposed to the air. The rock cannot be removed as it is attached to an epoxied stack. This stack is almost 36" tall. Anyways, is there some thing I can pour on this when it is exposed. There is nothing else growing on this rock. Hot water? The algae does not pull off very well with tweezers. Yes I know this is not the long term fix. I'm doing the wet skimming and the LaCl, the minimum feeding and the new RO filters as my long term solution.