My Discus Is Sick

[hellohefalump]

One of my discus (I have eight in my 100 gal) has gone darker and has a little bit of cloud in his eye.

I've never had discus before so I don't know what to do, I got three about 2 months ago, and I got five more this weekend. All the other discus are fine, and all of them are feeding well.

I last did a water change four days ago.

Anyone know what I should do?

 

[KittyKat]

Water parameters? Tank mates? Size? What maintenance do you do on the tank?

 

[kevinjames]

Is consider doing daily water changes for now as a precaution. Also I where the new discus added from a different source? I don't want to be pessimistic but normally after going dark the discus will find it hard to recover. For cloudy eye id use waterlife myxazin. It covers a lot of other bacterial problems aswell.