A month ago I got some baby bns from an online lfs. They were less than inch long and very hard to see.
Thanks to my camera and computer software I was able to detect this ich or whatever it was on this bn only a few days after getting the fish.
I dosed the qt tank with 1/2 strength Waterlife's Protozin for a couple of weeks and nipped the spots in the bud. The little bn's, including the one in the photo seem fine now.

