Red mat/sticks under microscope, help ID please?

[Reefer Dan]

My tank is about 7 months old. I think think I just finished a diatom bloom/phase and I thought this was Cyano.. I see some dinoflagellate in the pic (looks like ostreopais), but I was expecting to see some blue green algae, instead I found this red stuff? Any help With ID welcome! I vacuumed the sand bed and did a water change yesterday and this is the growth since then. See pics below.

Parameters (28g nanocube):
Phos: 0.12
Nitrate: 1
Salinity 1.0255
Calcium 425
Alk 7.9
Mg 1265
Temp 78F

 

[Reefer Dan]

Another pic

 

[taricha]

red cyano, spirulina type

 

[Reefer Dan]

red cyano, spirulina type

Great thanks! I can’t find a whole lot on how to fix this. I read that it seems Chemiclean is what works? I’m afraid that those dinos in the pics may take over if I do that... any insights or links by chance on how to handle it?