The first thing that I would do is get some salt in the pond at 0.8 pounds
per 100 gallons (0.1%). The fish should be netted and the ulcer treated
with a topical treatment of PP as a paste, iodine, or betadine and then have
the ulcer covered with an antibiotic first aid ointment. The ulcer will
start to get a white coating, and this is good, as it is new skin growing
over the sore. Be sure the water quality is really good, with 0 ammonia,
and nitrites. Observe that fish and the others for any sign of flashing
that would indicate parasites.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html
"martin shaw" wrote in message
...
I have one koi (out of 13) that has a large ulcer near his tail approx 1"
in
diameter and 1/4" deep with nasty looking ragged edges please advise best
course of treatment
thank you