Methylene Blue (No 10) is a traditional aquarium water treatment acting against a variety of disease organisms.

A popular traditional medication which is dye based. Harmless to all species of fish.

This 100ml bottle contains enough to treat 500 Litres (110 gallons).

It should be noted that Methylene Blue can effect both plants and filters.



Use Methylene Blue to:   

Prevent fungus on fish eggs:

• To reduce toxicity of nitrite in aquarium water
• As a treatment for protozoan parasites and fungus on fish

Pack includes:

• 100ml Methylene Blue
• Pipette
• Measuring Cup
• Guide to Fish Health