Brown Algae Problem - Help!
Hey guys,
In the last few months I have been getting this brown algae on my backwall and liverock. Ive been scrubbing and scrubbing but it wont go away. No fish, corals (besides my zoas) or inverts are affected.
Ive tried lights out, reducing nitrates, syphoning it off and scrubbing it off. It comes off in strings and matted chunks.
Its not in the substrate, only on surfaces
Ammonia: 0ppm
Nitrites: 0ppm
Nitrates: <5ppm
Phosphates: 0.01ppm
Alk: 8.2 dKH
pH: 8.2
Temp: 25 degrees
Tank Age: 18 months
Here are some photos;
My zoas haven't opened for months... starting to get annoyed
Any ideas what it is and how I can get rid of it?
In the last few months I have been getting this brown algae on my backwall and liverock. Ive been scrubbing and scrubbing but it wont go away. No fish, corals (besides my zoas) or inverts are affected.
Ive tried lights out, reducing nitrates, syphoning it off and scrubbing it off. It comes off in strings and matted chunks.
Its not in the substrate, only on surfaces
Ammonia: 0ppm
Nitrites: 0ppm
Nitrates: <5ppm
Phosphates: 0.01ppm
Alk: 8.2 dKH
pH: 8.2
Temp: 25 degrees
Tank Age: 18 months
Here are some photos;
My zoas haven't opened for months... starting to get annoyed
Any ideas what it is and how I can get rid of it?