Algae or Coralline?

[Matt Schario]

Hello,

I am hoping someone can help me identify this algae. If it’s Coralline, great I can leave it be. Everything I’ve read it goes from neon green to purple over time.

I didn’t even notice the neon green appearance until I set my lights to bright white. I feel the rocks and they don’t feel slime, but more like the rock.

I upgraded my tank recently and the neon green rocks are all new rocks. I am dosing purple up everyday. Running carbon/Gfo reactor. All of my tests are reading 0 as far as nitrates, nitrites, phosphates, ammonium. Light are REEFLED90 x 2. Mp40 powerhead, 150-S skimmer, using filter floss in the cups.

I have had the upgraded tank for about 2 months. Before I put any corals in I just want to make sure nothing is going to get out of hand.

thanks!

 

[AZMSGT]

That green is algae. Best way to tell.. does it brush off easily? If yes, Algae. Coraline won’t just brush off.

 

[Samina]

I think that is the start of coralline. If it brushes off easily or can be blown off then no, but if it’s hard then yes I think it is the start of coralline.

 

[DesertReefT4r]

Looks like green boring, not coraline but it tends to follow shortly after.