HELP! Need to identify this algae bloom before it kills all my corals.

[ReefMadness]

i'm at the point where i just want a positive ID on what exactly this is and why aquaforest salt/dosing components seem to have fueled it . it shares qualities of diatoms, dinoflagelletes and cyano which doesn't help either.
currently i'm just doing a weekly 15% water change, i've stopped dosing any carbon products and have opted out of using probiotic salt in favor of just normal reef salt. i turkey baste corals that are looking stressed from the algae but i try not to disturb it so as not to spread it any further.
hoping to create a slide this week to establish exactly what it is.