Black fuzzy algae

[Zwogle]

Howdy y’all, have a bit of this stuff growing on spots around the lives rock. Curious what it is, and if there is any cuc that likes to munch on it.

Thanks!

 

[Bret Brinkmann]

I had this in my tank for over a year. Never got much bigger than yours and grew very slowly. Never found out what it was but I think it's some kind of bacteria. My snails never touched it. I have nerites, ceriths, colonistas, astreas, and trochus. I got rid of mind by brushing it off with a toothbrush until I got every last little bit. It hasn't grown back and it's been several months now.

 

[VKP01]

Looks like a black sponge!

 

[Zwogle]

Thanks for the comments, it's to be pretty much taking care of it self slowly receding and disappearing, hasn't seemed to affect any corals.