ID please on red stuff

Our tanks are small marine ecosystems! Any sudden change o multiple factors, like light, feeding + flow may cause very short/temporal imbalance! ACTION = REACTION This is why IMO keeping micro reef is so fascinating!

 

Brown slime is usually indicative of dinoflagellates, not cyano.

 

Please explain what this means Thanks

 

Red/blue/green slime usually means that you have cyanobacteria (a.k.a. red slime).

Brown slime usually means that you have dinoflagellates (a microalgae that is similar to but not the same as cyanobacteria).

 

How does one deal with this form of brown slime? is it a lighting issue? or a Niitrate or Phosphate issue or overfeeding? because it looks like I have a brown slime that I never had before.

 

Yes, lights, nitrates, silicates, phosphates can contribute to dinoflagellate growth. You can treat dinos the same way that you would red slime. Increase water flow to the area where it's growing, reduce nitrates, phosphates, etc., reduce feeding, change to a quality bulb if yours are getting old.