How long should fish be in Methylene Blue?

Add 1 teaspoon of 2.303% Methylene Blue per 10 gallons of water. This produces a concentration of 3 ppm. Continue the treatment for 3 to 5 days.

Can I apply Methylene Blue directly to fish?

Quarantine Tanks Are Preferred

Methylene blue is generally recommended as a bath or dip treatment — don’t put it directly to your aquarium unless your vet advises to do so. It is a powerful phytotoxin, which means it attacks most types of bacteria and other micro-organisms indiscriminately, even the beneficial ones.

How does Methylene Blue help fish?

Methylene Blue effectively prevents and protects against superficial fungal infections of fishes, and also protects newly laid fish eggs from fungal or bacterial infections. As a secondary use, it is also effective against some external protozoans, including Ichthyophthirius (Ich).

How do you use Methylene Blue on fish eggs?

Hatching Corydoras Eggs! Methylene Blue Treatment

How quickly does Methylene Blue work?

Reports suggest that methylene blue up to six doses a day have resulted in improvement of symptoms within 10 minutes to several days.

What are the side effects of Methylene Blue?


  • Agitation.
  • bluish-colored lips, fingernails, or palms.
  • confusion.
  • dark urine.
  • difficulty breathing.
  • dizziness or lightheadedness.
  • fever.
  • headache.

Does Methylene Blue cure fin rot?

Drugs such as Tetracycline, Oxytetracycline, malachite green methylene blue and Chloramphenicol are also used to treat fin rot.

Does Methylene Blue help fin rot?

The following medicines will help cure the disease. Melafix,Methylene Blue, and Furan-2 Powder. Or if treating a betta or any other surface breathing fish, use aquarium salt. – Remove carbon from your filter while treating your tank.

How do you remove Methylene Blue stains from an aquarium?

depending on the size and if there are no fish in it, you can bleach it, refill/rinse and then refill with water, add dechlor just to be sure you’ve gotten it all out. Peroxide may work too. Otherwise, time will eventually leach it out.

Can I use methylene blue and aquarium salt?

Discussion: Caring for your fish using Methylene blue

What does methylene blue treat?

Methylene blue injection is used to treat a condition called methemoglobinemia. This condition occurs when the blood cannot deliver oxygen where it is needed in the body. This medicine is to be given only by or under the supervision of a doctor.

Can I use methylene blue in planted tank?

You’ll be fine. I’ve dosed methylene blue in my tank with plants with no ill effect.

Which is better methylene blue or malachite green?

Malachite Green is often combined with formaldehyde (aka formalin) and is somewhat similar to Methylene Blue in terms of uses. However, it is a harsher chemical and must be used with caution. It is most effective against external parasites, particularly when combined with formaldehyde.

How do you prevent fish eggs from getting fungus?

So a good strategy to prevent fungus is to lower the pH of the breeding tank. This can easily be done with aquarium chemicals that lower pH, or you can use one of the Blackwater Extract liquids to accomplish the same thing, which has the added advantage of adding organic acids that may further inhibit fungus growth.

How do you use methylene blue injection?

Methylene Blue (methylene blue injection) must be injected intravenously very slowly over a period of several minutes to prevent local high concentration of the compound from producing additional methemoglobin. Do not exceed recommended dosage. No information provided. Intraspinal injection is contraindicated.

How often can you take methylene blue?

HOW TO USE: Take this medication by mouth, usually 3 times a day after meals or as directed by your doctor. Take each dose with a full glass of water (8 ounces or 240 milliliters). Do not increase your dose, take it more often, or use it for a longer time than prescribed.

Is methylene blue harmful?

Methylene blue is a safe drug when used in therapeutic doses (<2mg/kg). But it can cause toxicity in high doses.

Does methylene blue expire?

Methylene Blue is stable indefinitely in the 2.303% solution. Aqueous solutions show very little, if any, decomposition even when exposed to sunlight.

Can methylene blue cause green urine?

Methylene blue is used to assess the integrity of the bowel and may cause self‐limiting bluish or greenish hue to the urine.

Is methylene blue antifungal?

In this study, we explored that the antifungal action of Methylene blue (MB) is mediated through mitochondrial dysfunction and disruption of redox and membrane homeostasis against C. albicans. We demonstrated that MB displayed its antifungal potential against C. albicans and two clinical isolates tested.

Is methylene blue water soluble?

METHYLENE blue dissolves in water and common organic solvents to give blue solutions absorbing light of wavelength near 660 mµ, for example 657 mµ in n-butanol (Fig.

Why are my fish fins turning white?

Fin rot is most often caused by a dirty tank and poor water quality, poor care, or exposure to other fish who may have contagious diseases. Fin rot can also be caused by injuries such as mishandling of fish or nipping and bullying behaviours from other tank mates.

How do I know if my fish has fin rot?

Symptoms of Fin Rot in Aquarium Fish

  1. Black, white or brown spots on the fins, tail, or the body.
  2. Ragged edges to the fins and tail.
  3. Fraying or torn fins and tail.
  4. Reddened, inflamed skin at the base of tail and fins.
  5. Complete loss of the infected fins and/or tail.
  6. Lethargy, lack of movement.
  7. Loss of appetite.

What are the symptoms of fin rot?


  • Fin edges turn black / brown.
  • Fins fray.
  • Base of fins inflamed.
  • Entire fin may rot away or fall off in large chunks.
  • Fins have white dots (if these are seen on the body it is possibly a symptom of Ichthyophthirius multifiliis)

How do you treat damaged fish fins?

How To Treat Minor “Fishy” Injuries – Damaged Scales, Split Fins …

What is the best treatment for fin rot?

A water-based treatment will wipe out your biologic filtration and isn’t suggested for such a simple issue. Improving your fish’s environment is the best treatment for fin rot. Persistent infectious requiring veterinary care may involve antibiotic injections with cleaning or trimming of the infected area.

Can methylene blue be used on betta?

Methylene blue is effective against superficial fungal infections of fishes. The drug may be used as an alternative to malachite green for the control of fungus when it is known that the fish to be treated are sensitive. Methylene blue is safe for use with fish eggs and fry for the prevention of fungal infections.

Does methylene blue wash out?

Methylene blue dye dissolves in warm water and organic solvents, as well as alcohol. Insoluble chloroform and bleach are also agents that dissolve methylene blue and can get it out of your clothing and carpets.

How do you make methylene blue solution at home?

Alkaline methylene blue solution – 100 ml

Dissolve 0.1g methylene blue in 100 ml distilled water (0.1% MB stock solution) • Mix 10 ml of the MB stock solution with 90 ml of the 0.1M glycine buffer. This solution is used for the viability staining.

How do you clean methylene blue?

When methylene blue is chemically reduced it becomes decolorised. This decolorisation is also acid-catalysed. Make up a solution containing 1 part vinegar (acid) and 1 part saturated Vitamin C (reducing agent), then rub that into the stain. Brilliant, thanks George.