Bryopsis or gha?

Chrille26 · May 1, 2020

Hi! A couple of weeks ago I noticed this stringy algae growing on the base of my Caulastrea. I just plucked it at my regular waterchange, but after one week it has grown back over the base of the coral. It seems to be local to that spot.
Should I worry or is it just regular gha?
Thanks for any advice!

Coolcasino · May 1, 2020

Looks like plain ole GHA to me. Cut back on your feeding and reduce your lighting.

35ppt · May 1, 2020

Redacted

broskie · May 1, 2020

If possible try and take some out. This is what Bryopsis looks like

Chrille26 · May 1, 2020

Coolcasino said:
Looks like plain ole GHA to me. Cut back on your feeding and reduce your lighting.

35ppt said:
I don't see a fern-like structure that would make me think Bryopsis. I've been able to get rid of trouble spots but hitting with peroxide. That is not a rock you can pull out and pour peroxide on is it? You could remove whats there then drain water out until it's exposed and hit it with peroxide.

broskie said:
If possible try and take some out. This is what Bryopsis looks like

Thanks for all the replies! After seeing the picture above Im certain its "just" gha. I cannot see any fernlike leaves. I guess I will just keep at it and pluck it out at the same time as I try to limit the nutrients.

The Caulastrea rock is not glued down so I could remove it and scrub the base outside of the tank.