!!!¡¡¡what the heck IS GOING ON?!!!¡¡¡ FRITZ SLIME OUT UV ORANGE SKIMATE????????

[tidepoolwizard]

Dosing all for reef maintaining 400-450 Ca dKh 9.0-9.5 usually 430 and 9. Not dosing anything else other than fritz slime out. I fallow the directions and now my skimate is almost as bright as my colorado sunburst, and It has not lost any color.
I still have yet to do the 25% water change which I'm about to.

Is it algea is it a bacteria bloom? Does anyone even know what's going on here?

 

[KrisReef]

Looks like the Cyanobacteria is letting loose of the substrates and getting filtered out by the skimmer.