Skip to content

NT LABS Koi Care Acriflavin 500ml /1000ml (treat rots and ulcers)


Acriflavin treats Fin, tail & mouth rot and ulcers. This is highly concentrated form.

When to use :
When fish show symptoms of a bacterial infection, or as a quarantine solution before adding new fish.

Acriflavin can be used in conjunction with Ulcer Swab and Propolis Wound Seal for the treatment of ulcers and other open wounds.

How to use :

  • Test your water quality.
  • Mix the appropriate dosage in a clean bucket of pond water, pour evenly over the surface of the pond and leave for 7 days. Switch off UV filtration until the colour has gone from the water. Aerate the pond well during treatment.
  • If you feel a repeat dose is necessary, check your diagnosis using the Diagnosis Tool ; a different medication may be more suitable. Allow 7 days after medicating and perform a partial water change before re- treating or treating with a different medication.
  • Always treat when you have time to observe fish and take appropriate action in the unlikely event of a bad reaction.

Composition :

Active Ingredients - Acriflavine neutral 80 mg/100ml 

500ml treat 18200L , 5ml treat 182L

Do not use at water temperatures above 30°C.
Do not use in hot, humid or thundery weather.
Do not mix medications.