GHA Bryopsis? Something Else? ID Help

[pdogg77]

Hoping for some help here. I'm trying to figure out if I'm dealing with GHA, Bryopsis, both, something else?

This is this tank: https://www.reef2reef.com/threads/pauls-90g-cube.362773/#post-14570452

To sum up it is 10 years old, started with TBS live rock and sand. Went through a period of heavy neglect. This is what is left after a lot of manual removal, cleaning up, etc. and I can't seem to get it to go away or really make a dent in it. Any help would be greatly appreciated.

Thank You!

 

[officialreefbros]

Picture? Bryopsis looks like it has branches!

 

[Baldyreef]

im leaning more towards gha than byropsis
#reefsquad

 

[EnterName]

The microscopy images look more like Derbesia or similar hair algae, not Bryopsis. Bryopsis has symmetric branches that are quite dense and well visible under the microscope.

 

[pdogg77]

The microscopy images look more like Derbesia or similar hair algae, not Bryopsis. Bryopsis has symmetric branches that are quite dense and well visible under the microscope.

Thank you. As I suspected. I'll continue the GHA battle :)

 

[officialreefbros]

Agree woth the GHA. Make sure to test frequently! Looks like a big outbreak and I've had that eat all the nutrients and cause dinos to jump in too

 

[pdogg77]

Agree woth the GHA. Make sure to test frequently! Looks like a big outbreak and I've had that eat all the nutrients and cause dinos to jump in too

Yes it is / was a decent sized outbreak. I'd say it is "getting under control" now but there are just some tough spots. Mostly where I had coral die off and bare skeletons. It is very clear where there are rough, porous surfaces with little to no other life on them. It digs in there.