Aren't they in the same tank or did you seperate them? I remember talking to you when you first bought your pickerel.
Treat them anyhow. It may be from the feeders, it may be from stress, but either way treat all the fish that are exposed.
I wouldn't raise the temp if you even have a heater in there, that saugeye won't do to well after a while.
Which meds did you use?