How big is the display?
Two ways to treat this (without cloudiness)
1) Antibiotics (which require a QT)
2) Antibiotic baths (which require removal to a bath QT every day for 10-14 days
3) Add Epsom salt in to the tank at 1 tablespoon per 5 gallons -- you can do two doses, a day apart. I have done three doses previously without issue, but Epsom salt is essentially mag so be sure you monitor its' impact for your coral/inverts in DT
I have a Queen angel I've been battling this with for months now, in QT I treated with lots of antibiotics which helped, did baths but each time I removed her it irritated the eye (hers was VERY far out -- for most this won't be an issue). The Epsom salt seems to help a bit. These can often be the result of injury and clear up over time.
If it starts to get cloudy, or you see little specs on the eye, it's time to change to antibiotics or prazipro (for flukes for the latter case).
