The last time I used it=--march I think, it got rid of most of it. I had a couple small areas in shaded rock areas that were not completely gone. And they came back. Also had cyano after which chemi clean took care of in 24 hrs. This time I will be adding mb7 to my diy "snow" (calcium carbonite) to avoid cyano.
I've been waiting to see if I could get rid of it on my own. I dose mb clean 1 to 2times a week, my nutrients are almost bottoming out--had to dose po4 for a while and yet algae getting worse. Looking into dosing a daily dosse of clean. Because my numbers say I shouldn't have algae issues, this has to mean either bryopsis or the algae is acting like an algae scrubber, esp in high flow and just using the nutrients before my test kits see them. I'll be watching my numbers and ready to up my dosing of nopox and nyos zero/bio
Here is what I did last time. Mar 17 dose. Apr 13 add half dose. Apr 26 water change.
Mar before treatment. Bad on left rock and rock before the right rock. In front of gsp in back
End April Algae gone mostly . Esp the forked rock in front of gsp
In July. Algae not bad. but starting. esp on fork
Here are pics of what I have today. You can see in a month the algae got super bad. Even choking some corals.