Methylene Blue


Dr. Fish
Methylene Blue

What It Treats
Healing agent which treats ammonia burn, abrasions, cuts. Mild antiparasitic/antibacterial properties. Will possibly detoxify a fish that has been exposed to cyanide poisoning. Probably one of the best “first response” treatments for a sick fish.

How To TreatComes in both liquid and powder form, sometimes mixed in with another medication (e.g. Nitrofuracin Green Powder). So, follow the directions on the label. Generally used in a 30 minute bath at double dose, but you can also dose it directly into a quarantine tank. Aerate heavily.

Dosing instructions for using 2.303% Methylene Blue solution:

1) 30 min bath (preferred): 1 teaspoon (5 ml) per 5 gallons.

2) In a quarantine tank: 1 teaspoon (5 ml) per 10 gallons every other day for 10 days with water changes before each treatment.

Highly effective “first response” treatment with minimal risk to fish.

Cons/Side EffectsMethylene Blue can destroy nitrifying bacteria (i.e. your QT biofilter), and will stain plastic, silicone, clothing, your skin, etc.

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