Let me get the normal info listed first:
Ammonia 0
Nitrates 10
Nitrites 0
ph 7.6
Tank size 80 gal, bare bottom, running for 8 months, 2 Emperior 400, 1 Rena xP3, an airstone with pump, 25 watt uv sterilizer(from Goldfish connection)
50% water change weekly using Prime
Six fish, none new, ranging in size from 5in to 8 in
Feed Progold, bloodworms, fresh veggies, etc.
I have had Adolf for over a year now. He had grow from 2in to a little over 8 in. He eats fine, reacts to me fine, and spends his day swimming and looking for food. His problem is that he seems to be itchy most of the time. Appears to try to scratch himself on things, but there is no gravel or sharp things to scratch on. He has not loss any scales, but he will swim fast and turn his head and body sideways to scratch. He will swim into the bottom of the tank or sides looking for what appears relieve. He has no visible signs like ick, lice or anything else that the naked eye could see. He has not done bottom sitting, nor does he have ragged fins.
What I have done so far,
Treated the tank with 2 courses of Parasite Clear. No change.
Salted to .3 % for 30 days. No change
Feed Metro-Med for 20 days. No change
Bought Prazi-Pond from Goldfish connection, treated for Flukes. No change.
So, any input would be wonderful. Thanks!