Ok I had a breakout of
ICH recently and I was told that it could not live in temperatures of 82.5 degrees. I brought it up to 85 and then went on vacation this past weekend. I got back and it accidentally climbed to 90 degrees

. Anyways I wend on to lower the temperature back to 85 however after 4 days of treatment now there are no sins of the ich backing off... In fact it seems it has gotten worse.
Any suggestions??
Thanks
Also because of my stock I won't use salt.
I would also like to note that only ONE cardinal has ich out of 7. he also has the symptom of lightening of colors (compared to the rest). Also he plays with the rest as if he weren't sick (and i'd like to keep it that way please help)