hey all, just noticed a heap of white fungus looking substance over majority of my live rock after returning from a holiday. Currently no fish in the tank as they're all in a hospital for marine itch. The rocks look like they have little white trees on them! Will post a pic asap!
The tank has been cycling for a week since the fish have been removed due to the itch, but previously was running for 3 months with no problems. Would this be harmful to the tank?
Most likely not. If need be you can start to manually remove it, and try running a UV if the problem does not clear on it's own.