Kordon Methylene Blue Disease Preventative – Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish Stress, 4-Ounces

Kordon Methylene Blue Disease Preventative Reviews Summary

Pros from Reviews

  • Effective for fish ailments
  • Safe for various fish
  • Does not harm pond plants
  • Quick results for sick fish
  • Good price for treatment
  • Essential for aquarists
  • Covers large water volume
  • No permanent staining

Cons from Reviews

  • Stains everything blue
  • Small bottle for price
  • Not effective for all fish
  • Can harm live plants
  • Requires careful usage
  • Not suitable with water conditioners
  • May discolor aquarium materials

Notable Features

Fungal Infection Control
Oxygen Transport Aid
Protozoan Treatment
Safe for Fish Eggs
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