I currently have an adult Marbled Angelfish with increasingly growing finrot on his caudal fin..
The tank stats are:
PH - 8
Ammonia - 0
Nitrite - 0
Nitrate - 15
So the waters a good quality at the moment, although have just gone through a stage of high nitrites reaching 0.8 at one point. But the finrot started before the bad readings.
It started out quite slowly, and we medicated with Interpet Anti fungus & finrot, although I put the carbon filter back in the tank after a few days as I was told water quality beats meds in mose cases. I think it's the carbon filter that has helped reduce the nitrite spike.
But now the finrot is terrible, and my other angel [they are a breeding pair] keeps nipping at the ragged fins. making the marbled finrot angel have to hide.
I have a spare 16" high Hexagonal tank that I could quarantine him in, is this advisable?
Should I re-dose and take the carbon back out?
Any advice would be extremely appreciated, as the rot seems to worsen by the minute
Thank you.
The tank stats are:
PH - 8
Ammonia - 0
Nitrite - 0
Nitrate - 15
So the waters a good quality at the moment, although have just gone through a stage of high nitrites reaching 0.8 at one point. But the finrot started before the bad readings.
It started out quite slowly, and we medicated with Interpet Anti fungus & finrot, although I put the carbon filter back in the tank after a few days as I was told water quality beats meds in mose cases. I think it's the carbon filter that has helped reduce the nitrite spike.
But now the finrot is terrible, and my other angel [they are a breeding pair] keeps nipping at the ragged fins. making the marbled finrot angel have to hide.
I have a spare 16" high Hexagonal tank that I could quarantine him in, is this advisable?
Should I re-dose and take the carbon back out?
Any advice would be extremely appreciated, as the rot seems to worsen by the minute

Thank you.