brown algae

[crobo]

I have a thin layer of what looks like brown algae growing in my tank, its on the rocks and will accumulate on any rough surface that has a reasonable amount of flow on it. I thought it was cyano but its really not red and there is plenty of flow in the tank so I think that might be in incorrect diagnosis.


Tank is 37 gal and i do a 5g water change once a week lights are on for ~10h a day. i would test for trates and phosphates, but i have a feeling tha the agae is just using it up so that wont really help. I use rodi. I've been running chemipure elite for a week now with no results.

The reason I'm posting a thread is becasue i cant seem to find any info on any type of brow algae that isnt diatoms or cyano. see attached pics

thanks for any info you guys can provide

 

[LadyQuorra]

I'm not really seeing any brown but i do see purple/pink stuff. Is that what your talking about?

Maybe this link can help Nuisance Algae ID Guide

 

[crobo]

Not the coralline, it's hard to see but just to the left the the sea whip there are like little brown hairs

 

[oyf709]

they are red slime algae, or call cyanobacteria.
It usually cause by too much feeding with left over, and also could be too long of lighting that is in green/yellow spectrum
or
you have high level of nitrate/phosphate.

 

[Daniel Fishy]

Brush it off with a toothbrush it's not red slime. A hector goby or a herbivore wrasse or such will enjoy it. Keep up with maint. brushing it off glass etc. it will go away don't overfeed