Kusuri 30% Formalin and Malachite Premix is a ready to use full strength formulation, popular as a pond-wide anti-parasite treatment. It is particularly good for White Spot, Skin Flukes, Chilodonella, Oodinium and most Protozoan Parasites.
Do not use below 12.5°C (54.5°F).
Please ensure that you read, understand and follow all Health and Safety guidelines on the bottle.
Please do not eat, drink or smoke whilst handling chemicals.
Wear disposable vinyl or latex gloves and appropriate eye protection.
Dosage: 100ml per 1000 gallons (4546 Litres) of pond water.
Directions: Treat up to 3 times 5-7 days apart maximum.
Do not use below 12.5°C (54.5°F).
Slowly apply to the pond over a 1 hour period, this will prevent shocking the pond with a highly concentrated dose.
Do not use Malachite and Formalin Premix in conjunction with salt.
Stop feeding during the course of treatment because Malachite and Formalin will reduce the bacteria in the filter, continuing to feed will cause an ammonia spike.
Once the course of treatment is complete monitor your water parameters regularly and add good bacteria to restart your filters, such as Kusuri Filter Starter Boost.
Is delivery free?
We offer free delivery on the majority of our products over £50. This excludes live fish and bespoke filters. Delivery to UK mainland addresses is £3.95 as standard, or £6.95 for express.
How do I return a product?
Get in touch via email or phone and let us know your problem, we will then help as much as possible. A postage address will be given for you to return the product back to us, and postage will be refunded where applicable to our terms and conditions, which are in line with consumer rights.
At Steel City Koi, we offer a wide range of safe and secure payment options when shopping with us.
Accepted payment methods:
Debit/Credit Cards (Inc American Express)
BACS (for faster dispatch of products) please get in touch for this
Cash upon collection *only for live fish
Pay Later options currently include Klarna and Clearpay
