Red Turf Or Coraline Algae

[Kieko250]

Hello all. New here. My tank has been up for about 4 months now. I added ARC Reef purple helix about 3 months ago. Now there is a purple and dark red algae bloom. I know coraline algae is suppose to be hard and crusty. Mine seems to have hairs flowing on certain spots. Any Help is mich appreciated.

 

[saltyhog]

That looks like cyano bacteria not turf or corraline algae. What are your PO4 and NO3 levels?

I would recommend increasing flow to the areas with the cyano and decrease nutrients a little if possible (depending on where they are now).

The rocks appear to indicate a new tank. This is sometimes part of the new tank uglies we all get and may pass with continued good husbandry.

 

[Streetdoc77]

I second Saltyhog .

 

[ColdOceanReef]

That's not coralline. Increase your flow and keep up with water quality.

On the side note, just curious on your tank filtration and lighting. I am amazed after four months and your rocks still remain at that white-ish coloring stage.

 

[Kieko250]

I just have a skimmer with carbon in filter socks. I have kept the light off since the diatom bloom started. Phosphate is 1 and nitrate is about 10-20