Could this be my problem?
I have a juvenile Koran Angel in QT, he's been in there for about 2 months, and has been unable to kick whatever the heck is wrong with him. I originally had him in QT with 2 butterflies. He has been alone for the last 7 weeks. I didn't notice much wrong for the 1st week, then it started showing.
Fish swims around normally, eats well (flakes only) doesn't seem to be bothered by it, but I'm afraid to bring it out of QT until this clears up.
Fish is being kept in 12 gallon tank with HOB skimmer. Skimmer is not running, just using it for filtration, have some chaeto and filter pad in it. No other tank-mates after week 1.
Fin deterioration and bumps on the fins mostly darker colored and look to me like a fungus.
I have treated with:
*Cupramine 1st week only.
*Prazipro for almost the whole time in QT. Then I did a large series of water changes to get the water super clean again.
*Maracyn Two, twice, (the second time (admittedly I over dosed a bit, 1 extra dose).
I have also freshwater dipped twice for about 7 minutes each.
This fish has not gotten any better, only progressively worse (pretty slowly over the whole period).
Not sure if my water tests are all accurate due to chemicals that I am dosing with. But levels are:
Specific Gravity 1.023
Nitrate: 5 ppm
Nitrite: no trace
Alkalinity: 230
PH 8.3
Copper gone, cleaned out with carbon after 1st week.
Have not tested phosphate, but very minimal algae growth in tank which catches ambient sunlight from several windows.
I'd be happy to hear any suggestions on what to try next.