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Colombo Nitrate Test

Colombo Nitrate Test

by Colombo
£10.99 - £10.99
£10.99
£10.99 - £10.99
£10.99
The disintegration of nitrite in the filter yields Colombo Nitrate Pond Test Kit (NO3).


Although nitrate is largely innocuous to freshwater fish, its presence might signal a decline in the aquarium's environment, and excessive nitrate levels will promote the growth of algae.


Testing it using a Nitrate test kit is the only technique to determine the level of nitrate.


40 tests are included in the Colombo Nitrate Pond Test Kit.

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