Update:
I have lost one of the 13 corys.
I have done a full 5 day treatment of maracyn and ich-x with no change in the white fuzz. So I did a water change and now im finishing a round of Furan 2 and Kanaplex with still no change. I have been following the instructions on the packages and today is the last day of the recommended dosing.
I will also note that the 2 hillstream loaches, 1 molly, and 1 siamese algae eater are doing well and have no signs of this infection.
Should I water change out the meds and see if the infection will work it self out with clean water and good food? One thing I have not tried is salt. I was next going to move the fish out of the planted tank and add salt.
Any suggestions please.