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One of my discus has this.
Can somebody help to identify the disease?
The second discus (I have two) does not have this white stuff, but both of them have kinda dark color, and I don't see them eating a lot...

I've bought them 10 days ago. The second one (not the one on the picture) had some spots very-very similar to Ich description, so I treated them with Formalin+Malachite green for the last week.....

Thanks for help.

P.S. I have also Clown Pleco and two Otos in the tank - they look just perfect...

not sure what it is
(I hope you didn't buy 'em from me)

I suggest:
60% water change...
2 TEAspoons of Salt
per 1 gallon of water....
raise temp to 87 degrees F.

Were there little white worm things near the spots . Also were they that way when you bought them . Heard of some fish feeding off the mucus of discus .