How long is the green dye meant to last in the water i mean the colour

I usually Leave it a day and then fill a glass with water from the pond. If it is clear, I turn the UV back on (it is usually clear).

Can this be used in winter?

I personally do not apply any treatment if the pond water temperature is below 10 Celsius. Under the FAQ section of NT Labs Koi Care - Acriflavin it states: "The minimum "effective" water temperature when applying a treatment/medicine is 10 degrees Celsius. At lower temperatures, everything happens more slowly. Below this temperature treatments may be less effective. Please note that ALL fish keepers have a duty of care to the fish and it may be necessary to treat anyway."

Can this be used same time as fmg please?

Not sure what FMG is? But it's not recommended to use anything else at the same time

How much do i use in 100 gallons

You need to use 10 ml of product t 80 imp gallons.

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NT Labs Koi Care Acriflavin Treatment (250ml Treats 9100L)

Product ID: 105571583

Details

Brand
NT Labs
Item form
Liquid
Liquid volume
250
Manufacturer
NT Labs
Unit count
250.0

⏳7-day treatment cycle for visible results

💧Treats up to 9100L pond water

🦠80mg/100ml powerful Acriflavin active ingredient

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Description

🐟 Keep your koi thriving with the gold standard in bacterial pond care!

SAFE SMART POND CARE - Non-toxic to fish when used as directed; switch off UV filtration and aerate for optimal healing
ULTIMATE BACTERIAL DEFENSE - Clinically proven antiseptic formula targets fin, tail & mouth rot fast
PRECISION DOSING MADE SIMPLE - Use the online calculator or easy volume formula for perfect pond treatment every time
TRUSTED LEGACY OF EXCELLENCE - 40 years of industry-leading koi care expertise, proudly made in Britain
MASSIVE COVERAGE MINIMAL EFFORT - One 250ml bottle treats a huge 9100L pond—perfect for serious koi keepers

NT Labs Koi Care Acriflavin Treatment is a potent liquid antiseptic designed to treat bacterial infections such as finrot, tailrot, and mouthrot in koi ponds. Containing 80mg/100ml of Acriflavin, this 250ml bottle effectively treats up to 9100 liters of pond water over a 7-day cycle. Trusted by koi enthusiasts for over 40 years and proudly made in the UK, it offers an easy-to-use, reliable solution to maintain healthy, vibrant koi.

Specifications

ASIN	B002SQGNQY
Brand Name	NT Labs
Customer Reviews	4.6 4.6 out of 5 stars (338)
Included Components	NT Labs Koi Care Acriflavin 500ml
Item Form	Liquid
Item Type Name	Koi Care Acriflavin
Liquid Volume	250 Millilitres
Manufacturer	NT Labs
Manufacturer Part Number	Aqua 392
Model Number	NT Labs
Target Species	Fish
UPC	733809002202
Unit Count	250.0 millilitre

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24220CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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