The stuff can actually be peeled off quite easily. A matter of fact if I create a strong wave like motion with my hands over it, the stuff peels right off and by the next day, it grows back in the same place. I've adjusted the water flow to pass over the rock in short intervals but this seems to make the mushrooms quite unhappy. I'm feeling very positive about the source of this particular rock. It seems to be made up of some product that may have leeching phosphates.
Quote:
Originally Posted by Phayes  Mikemangue, in the picture it looks more like corraline algae on your rock than cyano. Try rubbing it off. If it feels quite hard and does not easily come off, it's most likely corraline and not cyano. |