Interpet Treatment No. 10, 100 ml, Methylene Blue


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Methylene Blue is one of the traditional aquarium treatments. It is used to treat a variety of fish diseases. It should be noted that Methylene Blue can effect both plants and filters.

When to 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

For use with coldwater and tropical freshwater systems only

Dye Based

Harmless to all species of fish


100ml Methylene Blue


Measuring Cap

Guide to Fish Health

Treats 500 litres e.g. aquarium 5ft x 2ft x 2ft

  • Treats a variety of diseases
  • Comes complete with measuring cup and pipette.
  • Easy to use and simple to follow instructions.
  • Also reduces the toxicity of nitrate in aquarium water
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