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