Currently going through the uglies, is this gha?

[Biff0rz]

Pic attached, green stuff on the rocks, stringy. I don't have a cuc in the tank yet, they are almost done in qt (at least first rounders).

Until I can get my cuc in there, cut the lights and lower feedings? No corals in the tank yet.

 

[Ippyroy]

Looks GHA to me. Can't be sure though. Does it pull out easily? If it does, manually remove it and dip your hands in clean water each time. Mark is great and this method works easily.