need advice with root

So I have a plant that's in adwc and one of the roots have fuzz on it like if an apple was left out for to long
It would grow some fuzz on it and that's what it looks likeany idea on wht to do

White fuzz on roots is normal! The root hairs are used by the plant to increase the surface area of the roots.

Grow Safe!

Yeah they're root hairs for feeding. Nothing to worry about here.

White fuzz is what everyone is after they are nice and healthy. DWC doesn't allow that much cause the fuzz gets wetted down with the water in the res. but it is the best conditions for roots so I am told to fuzz out like that.

But its looks like mildew

How many people need to tell you it is a good thing?