I've used it it worked well had no ill effects on the fish and with a strong regment of tank cleaning and the treatment it can work.
If its a bad case you can use an industrial cow dewormer available at farm co ops never did it personaly because i cant get it with a vets scrip in canada but was informed it works amazing.
If its a bad case you can use an industrial cow dewormer available at farm co ops never did it personaly because i cant get it with a vets scrip in canada but was informed it works amazing.