Algae identification

[Danroo]

Need help with the identification of this algae both the green one and the purple. Was using tap water but switched to RODI a week ago. Already had brown diatoms tank is two and a half months olds. Ignore the photo bombing cardinal

 

[monkeyCmonkeyDo]

Blue green algae and coralline. Both great.
D

 

[Danroo]

Blue green algae and coralline. Both great.
D

I did brought my nitrates ( 5 ppm from 20) and phosphate to ( 0.25 from 5 ppm ) i usually did water changes to get it around those parameters but not this time. Don’t have any corals atm. I heard soft corals also reduce nitrates and phosphate. I’m not so sure about that.

 

[Jekyl]

Tank looks pretty new. The rocks will go through a complete color change from being white. All normal