Likely sponge but would need pics under white lightingThis stuff is mainly growing on the uppermost rocks and has grown into some recesses in the Monti cap I mounted a few weeks ago. It’s definitely not cyano as it’s very difficult to scrape off. It feels slippery/rubbery and is thin.
It doesn’t look or feel like a sponge. It’s very thin and encrusted over the rock much like coralline. This is the best pic I can get under more white light
Much better pic and this looks like an algae called Dictyota. Removal of this stuff is not the easiest but can be accomplished by using a dental pick or similar tool and lift and chip away (best done in a container of tank water). more established parts may have to be scraped.It doesn’t look or feel like a sponge. It’s very thin and encrusted over the rock much like coralline. This is the best pic I can get under more white light
Thank you!!! I have a lot of chitons that hitchhiked on some live rock that I started with. Is this algae a nuisance that I need to address or is it ok to just let the CUC deal with it?
If it gets established, it will be harder to remove
