Free Next Day Delivery

Free next day delivery on orders over €150

Learn More


Step by step
guide to
purchasing online.

Learn More


We go the
extra mile
...see how.

Learn More

Acclimation Guide

How to introduce new fish to your tank.

Learn More

Premium Selection

Odd balls and
unique livestock.

Learn More

JBL NO2 Nitrite Test-Set

Your Price: €12.99



Ships in 3 - 5 days


"JBL Nitrite Test-Set NO2

Recommended level max.: 0,1 mg/l nitrite in freshwater.
• For approx. 50 measurements with glass cuvette.
• For fresh- and saltwater.
• Measurement range from 0.025 to 1.0 mg/l nitrite.
• Colour scale with 9 colours from yellow to pink.
• Laboratory compensation system compensates water discoloration.
Product description
The JBL Nitrit Test-Set NO2 is designed for the measurement and routine control of the nitrite content in saltwater and freshwater within the range 0.025-1.0 mg/litre (ppm). The compensation method developed specially by JBL allows precise and reliable results to be obtained even in moderately discoloured aquarium water, e.g. caused by peat filters and disease treatment (Recommended level max.: 0.25 mg/l NH4)

Problem solutions
Where comes nitrite in aquariums from?
Nitrite (NO2) is a strong poison which blocks the transport of oxygen by the blood and leads to internal suffocation. It is formed by bacterial decomposition from ammonium and is further broken down into the non-toxic nitrate NO3. If nitrite levels exceeding 0.1 mg/l are measured, the bacterial break down of nitrogen is seriously damaged, without any doubt. This may be the result of treatment with antibacterial medications.

Measures against excessive nitrite levels in a freshwater aquarium:
1. Major water change of 1/3 to ½ the content of the aquarium.
2. Preparation of the water with JBL Biotopol.
3. Activate filter with JBL Filterstart.
4. Add JBL ClearMec plus to the filter. This filter material removes nitrite and nitrate from the water.
5. Identify cause: quantity of feed, fish stocking level, use of medications etc.
Measures against excessive nitrite levels in a saltwater aquarium:
1. Change 1/3 water.
2. Preparation of the water with JBL BioMarol.
3. Identify cause of nitrite: remove dead fish, clean areas of pollution, check filter etc.
4. Prime filter biologically with JBL Filterstart."

Customer Reviews

This product has not yet been reviewed.

Write a Review

Please login or register to write a review for this product.

Loyalty Points

Shop and earn
free livestock.

Learn More


See what
mix together.

Learn More

Contact Us


Tel. 01 459 5650
View our locations & Map


Tel. 091 764 563
View our locations & Map


Learn More

Arrive Alive

48 hours Guarantee - If your fish, coral, plant, or invertebrate doesn't arrive alive and stay alive for 48 hours, we'll credit your account or refund your money.

Learn More

Terms & Conditions   |   Privacy Policy   |   Site index   |   © 2012