Pumice Stone 25kg

In trickle filters and trickle towers, pumice stone filter media is increasingly widely utilised as an alternative to conventional koi pond filter media.

Although pumice stone Filter Media is inert, it quickly becomes colonised by good bacteria that aid in the removal of contaminants. Its high porosity makes it the ideal media for all kinds of biological filters. The media of choice must have an acceptable specific surface area (SSA), adequate voiding, and an adequate water retention time in order for biological filtration to be effective. The huge surface area of pumice stone filter media makes it perfect for this application. It is a direct substitute for other ceramic-based filter media.

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)

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Cash upon collection *only for live fish

Pay Later options currently include Klarna and Clearpay