Big white spots on the discus head

[Chorollo]

Hello mates,

One of my discus has multiple big white spots on cheeks.
Kindly check the attached image and advise.

Regards

[Mando]

Check your water parameters. Looks like a water quality issue.

It also looks very skinny. Is he eating? how many times are you feeding?

[danotaylor]

Yup, discus zits! Increase your water change routine to keep nitrates <10 and add 3tbsp salt per 10gal for a week.

[Chorollo]

Check your water parameters. Looks like a water quality issue.

It also looks very skinny. Is he eating? how many times are you feeding?

He is just moving around the aquarium, couldn’t see him eating.
I am thinking of quarantining him.
I feed 3 times a day

[Chorollo]

I will take a water sample to test the parameters, but I have other tank mates discus and angel, the look and act healthy.

[Mando]

I will take a water sample to test the parameters, but I have other tank mates discus and angel, the look and act healthy.

Just like humans, every fish is different. Eventually, they will all be affected if it's a quality issue.