My LPS 20gal. reef has been running under this fixture now for 1 year 1 month. All corals never lost any of there coloring nor bleached from the cross over. Matter a fact my Xenia's have...
Sadly ours died last week (pump malfunctioned and caught fire which had a domino effect of other water issues). He would hop along the front of our 200 gallon tank, loved to race back n forth....
Picked up my CB Target Mandarin from our FedEx station this morning. To say I'm disappointed about the condition of this fish is putting it mildly. I've yet to see a fish so skinny and still...
Yeah, it looks like it's growing in a patch and is hairy looking. I agree with Guy on this one, it could be Bryopsis, however, to get a better diagnosis, we'de have to have a clearer picture.
It's bryopsis, I really could bet money on it after the ordeal I just went through with this stuff. I needs to be removed. Turn off all flow and manually pull it out. Is this the only patch of it?
It can be if you let it get out of control. Bryopsis is a really difficult species of hair algae. IME, it grows quicker and is hardier than the normal hair algae. If you only have 3 small sections, manually remove as much as you can and continue to do so every time you see it. If you can, turn off all flow when removing it so that none of it gets kicked up and spread around.
Would it be a good idea to move that rock into a bucket that your using to do water changes, to pick it off? That is if you don't have any coral on it..