Fish Lice Treatment
Raise the water temperature slowly to 80 °F (26 °C) to speed up the fish lice cycle. Add ½ rounded teaspoon of aquarium salt per gallon of water to help your goldfish guard against parasite re-attachments and other common goldfish diseases. Now you can treat the aquarium with medication.
I recommend Parasite Guard, as it work very well with external parasites. Parasite Guard includes Dflubenzuron as an active ingredient, which is very effective against fish lice.
In addition to medication, goldfish hobbyists recommend using tweezers to remove visible adult lice on goldfish. As with anchor worm, be careful when doing this and make sure you medicate the entire tank beforehand to exterminate free-swimming lice and prevent eggs from hatching
A complete fish lice life cycle can take longer than that of many other parasites. So treatment for fish lice in an aquarium or outdoor pond may take up to a month. You should stop noticing signs of common goldfish diseases within a week though, often sooner.
or outdoor pond may take up to a month
You should stop noticing signs of common goldfish diseases within a week though,
often sooner.