Fish and other aquatic creatures

Methylene blue - how to use in an aquarium


Methylene Blue - This is a synthetic dye. A 1% solution (1g / l of aquarium water) is used, from which a therapeutic solution is prepared at the rate of 3 ml. methylene blue on 10l aquarium water. The course of treatment is to complete cure.

The drug is removed by filtration.

Methylene blue - Synthetic dye. You can buy at the pharmacy. Possesses bactericidal and fungicidal properties. For the treatment of external bacterial and fungal infections, as well as from some skin parasites - such as ichthyophthyrus. Applied with Aeromonosis, Branchomycosis, Gyrodactylosis, Ichthyophthyriosis, Kostioze, Plistoforose, Saprolegniosis, Hilodonellosis, Tetrahymenosis, Trikhodiniosis, partially acts on ectoparasites. But it adversely affects biological filtration, and it is better to apply it in baths and individual vessels. The water becomes blue in color, making it difficult to observe the fish, soiling equipment and scenery. It is better to carry out the treatment in a separate vessel, since the preparation paints the glass, inventory and water in a dark blue color. The drug is used in the form of 2 ml of 1% solution per 10 l of water. The treatment period is up to 1 month. At the end of the treatment, activated carbon filters are used to remove the blue. For baths - 100mg / l, aging 4-6 hours.

Here, still HUMAN. Instructions to the drug

Pharmachologic effect:
Methylene blue is a drug of the antiseptic group. The mechanism of action of the drug is based on its ability to form poorly soluble complex compounds with mucopolysaccharides and proteins of the bacterial cell, which leads to the death of microorganisms.
When applied topically, the drug is not absorbed into the systemic circulation.

Indications for use:
The drug is intended for the treatment of damaged skin in patients with burns, purulent-inflammatory skin lesions and pyoderma.

Mode of application:
The drug is intended for external use. It is necessary to avoid falling of a preparation in eyes and on mucous membranes. The drug is applied to the cleaned affected area with a cotton swab. The solution is used to treat damaged areas of the skin and some adjacent portion of healthy tissue.
The duration of treatment is determined by the attending physician.

Side effects:
In isolated cases, the development of allergic skin reactions was noted.

Increased individual sensitivity to the components of the drug.
The drug is not used to treat children under the age of 1 year.

The drug can be prescribed during pregnancy, if the expected benefit to the mother greatly exceeds the possible risks to the fetus.
If necessary, the use of the drug during lactation should consult with your doctor.

Interaction with other drugs:
Without features.

When using the drug on a large area of ​​the skin may increase the severity of side effects.
In case of overdose, drug withdrawal and symptomatic therapy are indicated.

Release form:
Alcohol solution for external use of 10 ml in glass bottles.

Storage conditions:
The drug is recommended to be stored in a dry place away from direct sunlight at a temperature of 15 to 25 degrees Celsius.
Shelf life - 2 years.

10ml solution for external use contains:
Methylene blue - 100 mg,

Drug pharmacology

The formula in practice gives a disinfecting effect. Also, the drug is involved in the redox process and supplies hydrogen ions. These properties allow it to be effective during the treatment of poisoning.

This composition is poorly soluble in alcohol and hardly soluble in water (only with a balance of 1 to 30). Methylene blue itself is green crystals, but when combined with water, the solution becomes saturated blue.

In what form is the drug produced?

In total there are two types in which the product is sold:

  • dark green powder
  • crystal dark green color.

Also, Methylene Blue has several other names that designate the same formula: Methylthionium chloride, methylene blue.

Aquarium fish, although very calm and quiet creatures, however, they, like other pets, also require special care. For them, you need to buy special food, monitor the maintenance of the required water temperature, provide air access and good lighting. Special attention should be paid to water quality. In the dirty water the fish can not be long and die. To clean the aquarium environment helps sanitary air conditioner with the name "Methylene Blue".

Properties of the air conditioner

The main advantage of methylene blue is the use of natural (organic) dyes in its composition. The tool has a number of properties useful for aquarium fish:

  • antiparasitic - with its help it is possible to effectively overcome fungi and protozoan parasites on the body of creatures and in water.
  • donor-acceptor - provides good tissue respiration of fish.

Means can be added to feed. Thus its soft action is provided. The solution does not harm the process of incubation of caviar, but rather contributes to it.


It is advisable to use the drug if you need to disinfect the aquarium water and deprive the environment of such parasites as chilodonellas, ichthyophthiriuses, as well as Ahli and Saprolegnia fungi.

With the help of Methylene Blue, fish tissue respiration can be improved after oxygen starvation, for example, when fish are transported for a long time.

Instructions for people: the use of the composition

Methylene blue solution must be applied strictly according to the instructions. For outdoor use, a solution of the powder with alcohol is taken in a ratio of 1 to 100 or 3 to 100, respectively. During the work it is necessary to wet the bandage or cotton wool in the solution and wipe the necessary places. The surrounding tissue is also treated with healthy tissue.

A very weak aqueous solution of methylene blue (1 to 5000) is used internally with water. For adults, methylene blue should be consumed in an amount of 0.1 grams per day in three or four doses. Children need to break the reception on the same number of times, but reduce the amount of the substance according to age.

Before you give the drug to a child under 5 years of age, be sure to consult with your doctor and clearly determine the causes of the formation of the disease.

Instruction: dosage

In a freshwater aquarium, you can add 20 drops (this is about 1 ml) to 50 liters of water. However, you can not just drop the required dose of the drug into the aquarium. For a start, it can be mixed with a small amount of water, for example, take 100-200 ml. Mix thoroughly, this solution can be poured into the aquarium in small portions. 5 days after disinfection, half of the water needs to be changed.

To completely remove the tool from the aquarium, it is advisable to use activated charcoal.

For the treatment of marine fish, they must first be placed in a separate container. The concentration of "methylene blue" for cold-blooded should be as follows: 1 ml. funds for 10 liters of water. Fish in such an environment should stay for about 3 hours.

Release form

Methylene blue is presented in the form of crystals, after interaction with water they turn blue. The drug is also available in powder. It is no secret that aquarium fish require special and thorough care, even though they are calm creatures. You will need to purchase special food, regulate the normal temperature of the water, and create access to oxygen. Quality lighting is also needed. Primary importance is given to water. If it is dirty for a long time, the fish do not survive. Methylene blue is just needed to clean the liquid.

The main advantage of the drug is the composition, because it includes natural dyes. It also has the following properties:

  1. Antiparasitic. The tool allows you to get rid of fungi and bacteria on the body of the fish.
  2. Donor-acceptor. This is necessary for good breathing of fish.

The drug is added to the feed. He perfectly softens the food.

What is it used for?

Methylene blue for an aquarium is a synthetic dye. The tool is presented in the form of dark blue crystals, perfectly soluble in water. It is used for: treatment of fungal diseases, ailments caused by parasites, blood diseases. It is necessary to restore the process of incubation of caviar, prevent stress and improve breathing. If similar phenomena are observed, it is necessary to use methylene blue. Application in the aquarium will improve the condition of the fish.

Cons means

Methylene blue for aquarium has disadvantages:

  • deterioration of filtering
  • negative impact on plant development,
  • coloring only in blue, including the skin of hands, stones.

Even considering the disadvantages, the tool is considered one of the safest fish care products. And to prevent a negative impact on the microclimate and the appearance of the aquarium will be obtained if you perform the procedure in another dish. In any case, the drug perfectly cures the fish, and also makes the environment more favorable for them.

How to apply?

Methylene blue should be properly used for the aquarium. The instruction includes clear rules for applying the tool. It is important to respect the dosage, so as not to harm the fish. It is necessary to use a solution of 1%. It is prepared simply: 10 grams of the drug is added to water (1 liter). The finished composition should be applied in such quantity: 3 ml per 10 l of water. In stores there are divorced products. A classic 50 ml bottle consists of 0.3 g of methylene blue. It is diluted in 100 liters of water. If you follow the dosage, then the drug will not harm.

In aquarium

Methylene blue for an aquarium can be used in one tank. To create a solution you need to perform the following steps:

  1. The required amount of the agent is measured, and then dissolved in 250 ml of water.
  2. 1/3 of the finished solution is poured into the aquarium. The water is gently mixed.
  3. After 30 minutes, add another half, and then the rest.

Mix the solution preferably with an aeration unit. At the time of treatment of the fish, the biofilter must be eliminated, because the blue neutralizes nitrification, which appears due to beneficial bacteria. It is necessary to be treated within 1 month. Then you need to apply a filter with activated carbon.

In a separate container

Methylene blue for aquarium is diluted in another container. It will take 25 ml of the finished composition to 10 liters of water. Fish should be placed in a container for 30 minutes. If this procedure did not help, you should repeat the session after 3 days. With the solution must comply with safety rules: use a respirator and gloves.

Rules for keeping fish

In addition to the use of methylene blue, you must adhere to the rules on the content of the fish. Under the aquarium should lay linoleum or cardboard. Then put the elastic stand. Dwelling fish should be washed without chemical agents. After buying it is better to process the baking soda, and then rinse. A solution of potassium permanganate should wipe the thermostat, filter, thermometer.

Any soil before putting it in the aquarium is necessarily boiled. Water must be added separated. Plants before planting must be disinfected. At first, the water is cloudy, but with the filter becomes clean. Fish should be run after 5 days, until there is a favorable environment. Some pets love soft water, while others like hard water. This can be determined by a special test. You must follow these simple rules, and then the fish will be fine.

Methylene blue for aquarium

Methylene blue is a conditioner for prophylactic and emergency disinfection of an aquarium.

In aquariums blue air conditioner is used as the strongest disinfectant

The tool can be used when cleaning the aquarium before settling with fish, if parasites are found. It is also regularly used for preventive purposes in the form of addition to water in small quantities.

The tool is effective, fast and inexpensive. Does not adversely affect fish.

Indications for use

Methylene blue is used for:

  • improve the quality of tissue respiration of fish,
  • increased caviar output,
  • improved development of eggs and future fry,
  • destruction of unicellular parasites and fungi,
  • reduce stress in fish when moving to a new aquarium,
  • treatment of pathological blood diseases,
  • cooking antibacterial feed.

Bluefish is used in freshwater and saltwater aquariums.

Adverse reactions

Adverse reactions are manifested as worsening conditions in an aquarium:

  • the condition of living plants is deteriorating
  • biofilters start to work worse
  • the walls of the aquarium, the decorative elements and the ground are painted blue.
Water after use can change its appearance.

In order to avoid such inconveniences it is necessary:

  • treat the fish in a separate tank,
  • before adding blue, remove all decorative light elements,
  • after a few days after application, thoroughly clean all surfaces.

Price and where to buy blue

Methylene blue is produced in vials of 50 and 20 ml, designed for use in 2500 and 1000 liters of water, respectively.

You can buy in any vetaptek or pet store.

In the article I talked about methylene blue for an aquarium. Described its composition, release form, properties and indications for use. Explained how to calculate the dosage and store the drug. Cited side effects and contraindications for admission, price and points of sale.

Short description

Methylene blue solution is a synthetically created dye of blue tint designed to maintain a safe balance in aquarium water, free from harmful microbes and fungi. Apply the tool and for water conditioning. It successfully cleans the fluid in which fish are transported.

Cleans quarantine aquariums that contain fish before being placed in the main water tank. In addition, the blue acts well in special spawning grounds to create a comfortable environment, which contributes to an increase in the survival rate of eggs, larvae and fry.

From the video “Blue for Health” you can find out how this tool is used.

The price of a methylene blue aqueous solution of the drug is usually about 50 rubles, and it can be purchased both in a regular and in a veterinary pharmacy. Keep this tool must be out of reach from children and animals, up to 2 years. The storage temperature specified in the description should not fall below 0 degrees.

The water-based methylene blue conditioner is a blue liquid and additional adjuvants. Usually it is packaged in 20 ml in special bottles with a dropper. Methylene blue powder is also encountered. The dye, which is part of the blue, has bright antiparasitic agents that kill fungus and parasites both in the water itself and in the mouth and scales of animals.

Methylene blue for an aquarium at the expense of the specifics of the work and the properties of molecules normalizes and regulates the tissue respiration of fish. Sometimes it is served along with the feed, thus ensuring its antibacterial effect.

Treatment of diseases

Methylene blue, due to its antibacterial properties, is used to treat external or internal bacterial and fungal lesions, such as fin rot. It is used in a number of diseases, such as:

  • Aeromonosis - abdominal dropsy or rubella carp, characterized in that the animal becomes sluggish, constantly lies on the bottom. Soon, completely stops eating, there are signs of bloating and loss of scales. The body of the fish is covered with red spots and large blood leaks. Methylene blue helps in its treatment.
  • Branhiomikoz - gill rot, characterized by the fact that the fish suddenly becomes lethargic, and soon on its gills begin to appear dark and red stripes. Soon necrosis of gill filaments develops, which become dirty-gray. Well cure this disease can be using a solution of methylene blue.
  • Gyrodactylosis is a parasitic disease caused by the so-called monogenetic flukes gyrodactyluses. It is characterized by a rapid change in the appearance and behavior of the fish. The animal is covered with white mucous plaque and hemorrhages on the fins.
  • Tetrachimenosis is another dangerous parasitic disease characterized by a high degree of survival.

Instructions for use

For the treatment of a freshwater aquarium, a methylene blue conditioner is used at the rate of 1 drop of the necessary product per 2.5 liters of liquid.

In addition, before using the right amount of medication is dissolved in 100-150 ml of water, and only then gradually contribute to the main aquarium. After 5 days, 50% of the liquid in the aquarium is replaced, if necessary, re-processed and keep the fish in the solution for another 5 days. После окончания процедур обработки воду фильтруют через специальный фильтр с активированным углем или полностью меняют.

Processing of marine aquariums is carried out differently: fish are deposited in a separate container, where 1 ml of blue is added to 10 liters of water. The treatment lasts 3 hours and is repeated every other day until the number of procedures reaches five.

To process the eggs, it is immersed in the solution for 2-3 hours at the rate of 1 ml of the required drug per 50 liters of liquid. But remember that the slightest excess of the indicated dosage can lead to the complete death of the offspring.

In addition, the use of methylene blue conditioner is necessary for the normalization of tissue respiration of animals. In this case, its concentration is 1 ml per 75 liters of water per application. The fish in this solution should be kept for 5 days.

Used drug for the manufacture of prophylactic feed. For this, 2-4 grams of fish feed is mixed with 2-4 drops of the solution. But be careful: before this, the blue must be diluted with water at the rate of 1 component of the medicine for 2 half of the liquid. After that, the food is dried (necessarily at room temperature), and only then fed to the fish for 10 days.

Use Restrictions

It is forbidden to use methylene blue conditioner if an increased concentration of nitrogenous compounds is fixed in water. In addition, we must not forget that when the drug is dissolved, the liquid in the aquarium acquires a blue tint, which often interferes with the observation of animals.

Do not forget that for the entire period of treatment, you must remove biofilters and any filters equipped with activated carbon from the aquarium. When using blue it is necessary to enhance aeration. With long-term treatment in the general aquarium there is a risk of losing plants.