what wrong with my fishes' eye?

thank you! does he need to be quarantined? or can I just add it to tank?

My majestic Angel had this same thing right after it was introduced. Cloudiness on one eye is usually caused from a kind of trauma/injury mine healed just fine on its own in about a week. I may be wrong though that's just what I've found from my research. Keep us posted if it spreads to both eyes.

Common injury on triggers. They like to wedge into tight spaces in the rocks, this in my opinion looks like he just scratched his eye on a rock. Should get better over time, if it doesn't start clearing up in a week or two I would consider quarantine with an anti-bacterial.

thanks everyone! Just bought some garlic supplement today. hopefully he makes a recovery.

Its a bacterial or fungal infection. Two things will happen, it will clear up and be normal... or it will get bigger and it will lose the eye. It may survive with only one eye but you'll need to make sure it gets fed well enough. Quarantining the fish and medicating it is the best option for the best results for the fish.