Stubborn eye fungus on french angel

[Funkateer_1]

The tank is a 300 gallon old school jaubert plenum filtered tank. Nitrates hover around 40ppm and salinity is 1.023. Only RO/DI water is used on the tank. The tank does have several (hardy) starfish.

The fungus appeared after the angel ate some artificial kelp and had a hard time passing it. It went after a 14 day cupramine treatment but quickly returned after the water was flushed out.

I have tried cupramine and paraguard and still there. The fish is completely healthy eye problems considered and eating well. She doesn't seem to see very well out of the inflicted eye. The fish is roughly 10 years old and 15" tip to tail.

Any ideas? I have access to pretty much every treatment out there including chloroquine.

Here are some lousy pictures, the right eye is the sick one.

 

[Funkateer_1]

Bump!

Any ideas or feedback? I plan on doing a large water change and begin a new treatment tomorrow.

 

[Funkateer_1]

Bump!

Doing a large water change on the tank now! Going to try the golden standard: Pimafix

 

[hedgedrew]

Its probably fluke related. Then infected. Frshwater dip. Formalin baths. Then last is antibiotics but that fish is very big to be in hospital tank. First 2i would do first. Prazi pro also kills flukes but they fall off in baths also.

 

[Funkateer_1]

Good call. Ill do prazipro. To bad the skimmer hates it so much ; D. Foramlyin is too tricky because the fish doesnt come close to fitting in a bucket. It just doesnt look like flukes to me. No white spots on eyes, just cotton-like growth

 

[hedgedrew]

then it could be an infection. Bacterial. Needs antibiotics. I don't know how you treat that huge beast in a quarantine tank. It may need both prazzi and antibiotic