poly filter improved my water a lot.. rays are more active, and they eat better.. water quality has never been better
I had 2 rays had cloudy eye, and I have tried salt and high temp.. one of them was sold and then later died at the next owner's position.
the 2nd ray i had, i could not help with just salt and temp and i went full dose of maracyn 2 and cleared in 3-4 days.
imo, if salt+high temp dont work in 2-3 days, use ray safe med, i believe me and Nic have been using Maracyn and Marcyn2 with no ill effect
good luck to you Brent.
PS Do u change carbon regularly?