Algae (think its diatoms)

[gt4profession]

Hey everyone,

I have some of this algae in the tank but its all over the rock. I can blow it off easy but have no idea what it is and why it keeps coming back. I have my flow fairly high but will only come off with the baster.

 

[Daniel@R2R]

Is it cyano perhaps?

 

[gt4profession]

Is it cyano perhaps?

Seems about right, just looked diffrent then what i was seeing online.