Fin rot?

ChadmRoman · Sep 25, 2021

Started noticing something white on the back fin of my copperband in qt. Any idea what it is anhow to treat? I have seachem products on hand.
min QT
Ammonia badge in safe range
Eating like a beast
Copper at 2.0ppm
First dose of gen cure last monday
Noticed the spot prior to dosing den cure but now getting bigger

mother fish in qt
Pencil wrasse
Cleaner wrasse
Yellow tang
Rombhoid
Blue flasher

Brymac1 · Sep 25, 2021

Looks like lymphocystis from the pic. Video won’t work for me. Lympho usually will go away on its own in time.

i cant think · Sep 25, 2021

Brymac1 said:
Looks like lymphocystis from the pic. Video won’t work for me. Lympho usually will go away on its own in time.

I agree with this

Jay Hemdal · Sep 25, 2021

ChadmRoman said:
Started noticing something white on the back fin of my copperband in qt. Any idea what it is anhow to treat? I have seachem products on hand.
min QT
Ammonia badge in safe range
Eating like a beast
Copper at 2.0ppm
First dose of gen cure last monday
Noticed the spot prior to dosing den cure but now getting bigger

mother fish in qt
Pencil wrasse
Cleaner wrasse
Yellow tang
Rombhoid
Blue flasher

Yes, the video clearly shows it as Lymphocystis. That will go away on its own after a couple of months, but it may spread a bit further during that time.
More of an issue is that the fish is getting thin - commonly seen in CBB, just try to feed it more food, more often.
Jay