fungus type slime on sides, discus likes to be picked

[rytis]

i'm more concerned about this, because a year ago before i was successful with any discus, same thing resulted in getting out of control and eventual death of quite a few discus:

one discus has this slime patch and he turns half way sideways as if to invite others to pick it off, then he clamps his fins together and shivers as others pick on it.

it is a beautiful male, whos girl has been stolen 10 days ago into breeding tank, actually it's not his gf, but he was her new bf... maybe depression leads this particular one to disease, it's one of the most beautiful, i have to save it!! he has the best appetite, but i know that can change fast i am very concerned :(

[goldenpigeon]

water params?
pic?
colour of slime?
tank specs?

[rytis]

water params?
pic?
colour of slime?
tank specs?
color of slime is white it was in community planted tank 265g, but imoved him toa breeding 50g to his girlfriend, ithink the depression may have caused it, coz it started after i removed her 10 days ago, now i think he's better right away, will update tomorrow