Kusuri Filter Starter Boost Pink

Simple home brew Kusuri Filter Starter Boost Pink will be ready to restart and boost the nitrogen cycle in your pond in 5-7 days.


Keep the original container for reasons of health and safety.
between 5 and 30 degrees Celsius for storage.
Keep out of children's reach.
Wear safety goggles and gloves whenever you handle this product.
Utilize within a year of opening.


Beginning Filter Boost (pink)


For ponds up to 5,000 gallons, use a 500ml quantity.

For ponds up to 10,000 gallons, use 1 litre size.


Dose Rate: One gramme of freeze-dried bacteria and 100 millilitres of liquid per 1,000 gallons of pond water (attached to the side of bottle).

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