Has anyone used this for fin rot and does it work well?

Use a few drops of this with a tsp of Epson salt per gallon and your fishy will heal. The methylene blue will stick to wound to provide oxygen to promote healing. Change 1/3 of the water per week.

Can someone tell me if there are any additional ingredients ( preservatives,food colorings,additives,etc.) in this product?

label does not list any addl ingredients. Does state for aquarium fish use only. Not for human or food fish use.

How much do you use per gal?

Please aquarium use, please follow the directions on the bottle, which says 1 tsp in 10 gallons produces a 3ppm solution. For 1 gallon, one tenth of a teaspoon is 0.5 mL, or about 10 drops. For other uses, please be aware that this is not a 1% solution. The manufacturer states that this is a 2.303% solution. This means that each drop contains 1.15mg (not 0.5mg).

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Kordon #37344 Methylene Blue-General Disease Prevention Tre

Product ID: 259309832

Details

Brand
Kordon
Item form
Liquid
Item weight
4 Ounces
Liquid volume
4 Fluid Ounces
Unit count
4 Milliliters

🐟Targets fish disease prevention

💧4 fl oz precision liquid

🧴Odor-free, easy application

S$23

Duties & taxes included

In stock

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Description

🐠 Stay ahead of fish health—because your aquarium deserves the best!

TRUSTED BY THOUSANDS - Rated 4.7 stars by over 3,600 fish enthusiasts—join the community of confident caretakers.
ODOR FREE APPLICATION - Maintain a fresh, clean environment without unpleasant smells.
PRECISION 4 OUNCE FORMULA - Compact yet powerful dosage designed for effective treatment.
PROACTIVE AQUARIUM DEFENSE - Keep your aquatic ecosystem thriving with trusted disease prevention.
VERSATILE FISH HEALTH SOLUTION - Ideal for all freshwater fish species, ensuring broad-spectrum protection.

Kordon #37344 Methylene Blue is a 4-ounce liquid treatment designed for general disease prevention in freshwater aquariums. Odor-free and easy to apply, it supports fish health by protecting against common ailments. With a strong 4.7-star rating from over 3,600 users, it’s a trusted choice for proactive aquarium care.

Specifications

Allergen Information	Odor-Free
Asin	B00025646W
Best Sellers Rank	#10,235 in Pet Supplies (See Top 100 in Pet Supplies) #80 in Fish Medication & Health Supplies
Brand Name	Kordon
Customer Reviews	4.7 4.7 out of 5 stars (3,660) 4.7 out of 5 stars
Global Trade Identification Number	00048054373442
Included Components	KORDON #37344 Methylene Blue-General Disease Prevention Treatment for Aquarium, 4-Ounce,
Item Form	Liquid
Item Type Name	KORDON # 37344 METHYLENE BLUE 4 OZ
Item Weight	4 Ounces
Liquid Volume	4 Fluid Ounces
Manufacturer	Kordon
Manufacturer Part Number	048054373442
Model Number	MODEL-37344
Number Of Items	1
Pet Type	Fish
Target Species	Fish
Unit Count	4 Milliliters
Upc	048054373442

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