Best way to Treat Fin Rot disease in goldfish

First observe the fish and confirm it.

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Separate the fish to hospital tank, otherwise it can spread to other fishes

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Add a heater and keep the water temperature at 74° F.

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Also add 1/3rd tea spoon rock salt to the water, because it treats parasites and reduce stress

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You can also use Rid All anti Ich and anti chlorine to treat the water.

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feed is the main important in goldfish, so always feed quality pellets.

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My suggestion is feed them some green peas with pellets.

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Change the water up to 30% weekly 2 times. And add good filter so water remains good.

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Keep the light on minimum 6 Hours. And continue the treatment for 2 weeks.

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