Bio Blocks 16KG Filter Media

Burtons Bio Blocks are a new and exciting form of biological media. They comprise of five different blocks with each block having a different role to play within in the ecosystem of the pond.

With the first block containing Silver to kill of bad enzymes and bacteria. The Second which slowly releases trace elements into the water such as Calcium, Magnesium and Zinc. The third which is Far infrared helping to breakdown waste and increasing oxygen levels. The fourth block works purely biological so is highly efficient in allowing nitrifying and denitrifying bacteria to cultivate. Finally, the Fifth block contains negative ions to aid the health and wellbeing of your pond/fish.

With these blocks combined and added to your existing filtration itÕll give you the very best water quality.

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