Hello
Our tank was established and cycled in January. After setback with first clownfish dying from Brooklinella we went fallow for a while.
Tank was crystal clear and everything looked great.
Last Sunday we picked up some coral frags - hammer, torch, mushroom, GSP and clover polyp.
They were doing great, opened up and even looked like they grew a bit
That lasted 3 days and then things deteriorated very fast.
Thursday morning I found tank covered in brown stuff - sand, glass, rocks. but corals seemed to be still doing ok. I syphoned as much as I could that brown from sand, did water change.
Today corals look much less happy, clover polyp does not even open and I found stringy brown stuff on it...
We do use RO/DI water by the way and did not run lights on full blast to let corals acclimate.
Some videos to show what is happening:
So.... what is it? what do we do? Are corals in danger?
Our tank was established and cycled in January. After setback with first clownfish dying from Brooklinella we went fallow for a while.
Tank was crystal clear and everything looked great.
Last Sunday we picked up some coral frags - hammer, torch, mushroom, GSP and clover polyp.
They were doing great, opened up and even looked like they grew a bit
That lasted 3 days and then things deteriorated very fast.Thursday morning I found tank covered in brown stuff - sand, glass, rocks. but corals seemed to be still doing ok. I syphoned as much as I could that brown from sand, did water change.
Today corals look much less happy, clover polyp does not even open and I found stringy brown stuff on it...
We do use RO/DI water by the way and did not run lights on full blast to let corals acclimate.
Some videos to show what is happening:
So.... what is it? what do we do? Are corals in danger?
Last edited:
