Gray short hair algae

[GONSALVR]

I have a continual issue with a type of gray short hair algae. I my nitrates are low and all other parameters are within the healthy range. I've tired adding Purigen micro pods to my filter basket. I've tired scrubbing off the rockscape once a week with my weekly water change but to no avail.

One important observation - there is no short hair algae on the side of my rockscape or under the overhang section which is not getting the same light intensity. My coralline alage is spreading nicely along the back and the powerhead so I know my water chemistry is good. I would like to get the coralline to spead to the rockscape as well.

Thank you for taking the time to read my message and I appreciate any advice I could get.

Ray Gonsalves
Milltown, Nj

 

[Mr. Mojo Rising]

Can you share your nitrate and phosphate levels? Do you have powerheads in the tank?

 

[ScottJ]

Also, how old is the tank?