Kusuri Formalin 30% is best used with Kusuri Malachite Green for the effective treatment of most single cell parasites including White Spot, Costia, Chilodonella, Oodinium and Protozoan Parasites. Use above 12.5°C (54.5°F) Kusuri do not recommend the use of Formalin with any salt solution. 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: 75mls per 1000 gallons (4546 Litres) of pond water.
For use above 12.5°C (54.5°F)
Directions: The normal course is 3 treatments, 5-7 days apart. Switch off UV steriliser until course of treatment is complete. Formalin is a very active chemical and is best used with Kusuri Malachite Green for the effective treatment of most single cell parasites, including white spot, costia and some fluke infestations.
Slowly apply to the pond over a 1 hour period; this will prevent shocking the pond with a highly concentrated dose.
Formalin is highly toxic and a carcinogen chemical, please ensure you read, understand and follow, all safety guidelines included with this product.
Do not use Malachite and Formalin in conjunction with salt.
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
