Acriflavin – Effective Antiseptic and Antibacterial Treatment



Mouth rot is a patch of white stuff on a fish’s lips. As the disease advances it produces toxins that erode the lips of the fish. Advanced cases get very ugly and the fish can’t eat. Names for this disease include cotton-mouth, mouth fungus, and flexibacter.

Fin rot is one of the most common diseases in aquarium fish, but it is also one of the most preventable. Technically, fin rot is caused by several different species of bacteria, but the root cause is usually environmental in nature and is often related to stress, which can weaken a fish’s immune system. When fish are moved, kept in a tank with poor water conditions, subjected to overcrowding, or coupled with aggressive fish that chase them and nip at their fins, they are more susceptible to fin rot.

You must address the causes of the stress that led to the mouth, tail or fin rot before your fish can heal. Start by testing the aquarium water. Check the pH and temperature of the water, and make sure they are appropriate for your fish species. Be sure there isn’t excessive chlorine, ammonia, or nitrite in the water, and that the nitrate is under 40 ppm (mg/L). A water change of up to 25 percent can be helpful in restoring healthy water balance, as can vacuuming the gravel substrate to remove food and waste debris. Take care to avoid overfeeding in the future.

Acriflavin treats fin, tail & mouth rot and ulcers. Every 100 ml of Acriflavin can treat 3,640 litres of water. Leave biological filtration running. This treatment contains colour dye, avoid contact with clothes and furnishings. Dosage: 1 ml per 36.4 litres of water. Mix the appropriate dosage in a clean container of aquarium water, pour evenly over the surface of the aquarium and leave for 7 days. Switch off UV filtration until the colour has gone from the water. Aerate the aquarium well during treatment. Do not use simultaneously with other medications. Allow at least 48 hours to elapse when changing treatment. Perform partial water changes on the days between medication dosages. Always treat when you have time to observe fish and take appropriate action in the unlikely event of a bad reaction. Carefully observe your fish to be sure that rot and ulcers do not recur after treatment.

In order to improve your fish’s overall health and wellbeing, be sure to maintain good water quality at all times and feed an appropriate diet. Keep up with a regular maintenance schedule. Check in on all your fish on a regular basis and understand their normal appetites and behaviors so you can quickly judge when something is wrong. If you suspect something is wrong with your fish, contact your aquatic veterinarian as soon as possible.

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