freshwater angelfish disease

Question
Mr. Kline...I have a hundred gallon aquarium with large angelfish and community fish...it is planted and has three filtering systems...i do a forty percent water change every four days.

i have beautiful angelfish that has popeye and a distended stomach...she wont eat.  i have tried two medications for internal parasites which did nothing. any suggestions on treatment.

Answer
My first suggestion is to remove that angelfish from the tank so your other fish have a rare chance of getting its illness. My second suggestion is to try some melafix as I have had a good experience with that chemical. My third suggestion is trying a salt bath as this will help with the infection of the eye. Depends on how big of a container you use to put the angel in for the salt bath so I can not give a recommended salt value as it may be wrong. Have a nice day and hope things get better!