Bristlenose babies plecos inffected with ich? What is it

[TetraL200]

Recently the babies have become free swimming out of the cave. Problem is everyone all of a sudden has this ich. The spots seem to be like little bumps everywhere on them with a yellowish tint color. Not the bormal type of ich you see on fish like tetras or sowrdtails etc.
I recently increased temp to 86f added more airators for oxygen, and added salt and a little ich dye. I understand some people dont recommend but im trying since the outbreak was fast and devastating. The only one not seemed inffected is the large mail (father) whos still in cave protecting. Recently i realized there was thousands of this white alge looking stuff on all the glass and caves lightly flowing with the current. It is very small in the pictures. I just need opinions and expertise. Thanks in advance

[Redrain]

I'm sure some experts will chime in and tell you exactly what's that.
Good luck