Colombo NO2 Test Kit

Code: 05020287
  • $8.01
  • RRP $8.55
Item in Stock | Usually dispatched within 24 hours
Order within for delivery Tuesday 3rd August with Express Delivery

Why buy from Pond Planet?

14 day returns On all our items
100% Secure Shop in confidence
Excellent Value Amazing prices!
Free delivery on orders over £49*
  • Suitable for ponds and both freshwater and saltwater aquariums
  • Easy to use
  • Fast & accurate results
  • Liquid reagents
  • Contains 40 Tests

The Colombo Nitrite Test Kit contains all you need for testing the level of harmful nitrite in ponds and both freshwater and saltwater aquariums. The Colombo NO2 Test Kit comes complete with test tube and liquid reagents to provide accurate results for 40 tests.

Nitrite (NO2) is produced out of ammonia by the nitrifying bacteria in your aquarium or pond. As nitrite is highly toxic to all water life, it is vital that the nitrite level in the water is zero. The best way to harbour these bacteria is in a biological filter. A new 'clean' filter needs time to have a sufficient number of bacteria to grow inside it. You can give this growth a boost by adding the right type of bacteria from the moment the biological filter is started. For all types of water, Colombo has the right product with the right bacteria.

An optimal nitrite level in all kinds of water is simply 0 mg/l. When the nitrite level is 0.5 mg/l or higher, it means that aren't enough bacteria present and thus it is recommended to use a Colombo bacteria culture. Use Colombo AquaCare or Colombo BiClear for your pond to bind and detoxify the ammonia; in this way also the production of nitrite from ammonia is blocked. At a nitrite level of 1.0 mg/l, nitrite can become toxic, and thus it is wise to first refresh 25% of the water. At nitrite levels of 2.0 mg/l and higher, you should directly refresh 50% until the nitrite level is 0.5 mg/l or lower.

Instructions For Use:
1. Take a water sample of 5 ml.
2. Add 5 drops of NO2 test fluid.
3. Shake well.
4. Wait 5 minutes.
5. Determine the NO2-value using the included colour chart.
Showing our 1 review for Colombo NO2 Test Kit. Write a review
Review Summary - 5 out of 5 based on 1 rating.
March 22, 2021 | Anonymous
NO2 Test Kit

Great service.

UK Delivery

Order before 2:00pm for same day dispatch.

Orders under £49

Standard Delivery Service - £3.95
Delivery takes 1-2 working days.

UK Express Delivery - £5.95
Upgrade your order to next working day delivery.

Orders Over £49

UK Express Delivery - FREE!
FREE next working day courier delivery via DPD Local.


Click Here For Full Terms & Conditions


If for any reason you are not satisfied with your purchase from Pond Planet, you may return the product(s) to us within 14 days of the purchase date for a refund or exchange.

Goods must be returned in perfect and unused condition, in their original packaging. The buyer must ensures that the goods are securely and adequately packed to avoid damage and the purchaser pays all postage costs. We recommend that products are returned by recorded delivery or by carrier that requires a signature. Pond Planet accepts no responsibility for goods returned to us unless signed proof can be provided.


Click Here For Full Terms & Conditions


You can use any of the payment types listed at the bottom of the page to pay for your order. Your details are safe with us as we take security very seriously indeed.

We also take fraud very seriously so all credit and debit card transactions are subject to validation, authorisation and security checks by both the card issuer and ourselves.

Please note - We DON'T store your credit card details on line.


We are committed to protecting your privacy. We will only use the information that we collect about you lawfully (in accordance with the Data Protection Act 1998) and inline with our Privacy Policy. 

We collect information about you for two reasons: firstly, to process your order and second, to provide you with the best possible service.

We will not email you in the future unless you have given your consent and will give you the chance to refuse any marketing email from thereafter.


Click Here For Our Full Privacy Policy