Over the last while, we've had a continuous problem with some strange brown algae, the best way I can describe it would be to say it looks like dying hair algae except it's not dying, it grows and it grows fairly fast, in the sand it just seems like a light brown film over the top and it doesn't seem to grow on the corals much but we're having a hard time getting rid of it.
A few pictures:
Like I said, it doesn't seem to grow on the corals too much but I'm sure it can't be too good for them. Two of the corals (a staghorn and a brain coral) seem to be dying, the brain coral for sure. The staghorn no longer has polyps coming out of it and seems to have a brown film growing on it
The brain coral, from what I can tell, started off fine for a long time and eventually a small piece of it was under some sort of algae and eventually died, the fairly small dead piece enventually spread through the coral and now most of it is dead.
What would be the thing to do with this coral? is it pretty much gone or do we cut the dead part off or what? The other part seems quite healthy actually.
Some specs:
we have 2 400w metal halides and 410w fluorescent lights
Skimmer and a denitrator running
We add Purp Up and Coral Accel most days, kalkwasser is added mixed in with fresh water.
Water tested about every 3 days and the levels seem to be fine, nitrates are 0 or close to 0, PH is fine, nitrites fine, everything seems to be fine.
We clean the tank regularly and try to get as much of that algae off the rocks as we can in 1 go but it always seems to come back. I'm not sure what the problem could be, any advice would be appreciated. If you need more pictures or certain test results, just say. Thanks.
A few pictures:
Like I said, it doesn't seem to grow on the corals too much but I'm sure it can't be too good for them. Two of the corals (a staghorn and a brain coral) seem to be dying, the brain coral for sure. The staghorn no longer has polyps coming out of it and seems to have a brown film growing on it
The brain coral, from what I can tell, started off fine for a long time and eventually a small piece of it was under some sort of algae and eventually died, the fairly small dead piece enventually spread through the coral and now most of it is dead.
What would be the thing to do with this coral? is it pretty much gone or do we cut the dead part off or what? The other part seems quite healthy actually.
Some specs:
we have 2 400w metal halides and 410w fluorescent lights
Skimmer and a denitrator running
We add Purp Up and Coral Accel most days, kalkwasser is added mixed in with fresh water.
Water tested about every 3 days and the levels seem to be fine, nitrates are 0 or close to 0, PH is fine, nitrites fine, everything seems to be fine.
We clean the tank regularly and try to get as much of that algae off the rocks as we can in 1 go but it always seems to come back. I'm not sure what the problem could be, any advice would be appreciated. If you need more pictures or certain test results, just say. Thanks.