Aquarium Systems - No. 2 test
The Aquarium Systems NO2 Test is an accurate and easy-to-use test kit for measuring nitrite (NO₂) levels in both freshwater and marine water. Nitrite is a toxic substance that forms when...
The Aquarium Systems NO2 Test is an accurate and easy-to-use test kit for measuring nitrite (NO₂) levels in both freshwater and marine water.
Nitrite is a toxic substance produced during the breakdown of waste in the aquarium. Even small amounts can be harmful to fish and invertebrates. This test allows you to quickly check whether your water parameters are safe and whether the biological filter is functioning properly.
Features:
- Reliably measures nitrite (NO₂) levels in freshwater and seawater
- Indispensable when starting up a new aquarium
- Easy to use with clear color comparison
- Helps detect water quality problems in a timely manner
- Ideal for regular maintenance and water control
Contents:
- Reagents for multiple tests (40 tests)
- Color comparison chart
- Measuring cup and clear instructions

Do you want to...
Brand
-
-
Aquarium Systems
View 46 other products
Stock status of products
Product is in stock
You can see this on the product page, above the price of the product. Here you will always find the most current stock status of the product. If your order consists entirely of products that are available from stock, your order will be packed and shipped immediately.Pick up stock product
You must place the order online and choose pick up. Your order will then be prepared for you. As soon as it is ready to be picked up, you will receive a notification by e-mail and/or SMS.A pick-up order placed before 14:00 is usually ready to be picked up the same day.
Shipping costs to other EU countries
| Country | Parcel | Pallet small | Pallet big | Livestock | Free shipping | ||
|---|---|---|---|---|---|---|---|
| 0-10 kg | 10-20 kg | 20-30 kg | Max. 250 kg | Max. 500 kg | Max. 30 kg | ||
| Afghanistan | € 129.95 | € 229.95 | € 329.95 | On request | On request | Not possible | € 2000.00 |
| Albania | € 49.95 | € 79.95 | € 119.95 | On request | On request | Not possible | € 1000.00 |
| Algeria | € 109.00 | € 139.00 | € 219.00 | On request | On request | Not possible | € 1500.00 |
| Andorra | € 49.00 | € 99.00 | € 149.00 | On request | On request | Not possible | € 2000.00 |
| Angola | € 109.00 | € 149.00 | € 199.00 | On request | On request | Not possible | € 2000.00 |
| Anguilla | € 139.00 | € 139.00 | € 139.00 | On request | On request | Not possible | € 2000.00 |
| Argentina | € 69.00 | € 149.00 | € 199.00 | On request | On request | Not possible | € 10000.00 |
| Armenia | € 69.00 | € 149.00 | € 249.00 | On request | On request | Not possible | € 10000.00 |
| Aruba | € 59.99 | € 149.00 | € 249.00 | On request | On request | Not possible | € 10000.00 |
| Australia | € 129.95 | € 179.95 | € 269.95 | € 499.00 | € 999.00 | Not possible | € 10000.00 |
| Austria | € 9.95 | € 12.95 | € 18.95 | On request | On request | € 37.49 | € 500.00 |
| Azerbaijan | € 129.00 | € 229.00 | € 329.00 | On request | On request | Not possible | € 10000.00 |
| Bahrain | € 79.00 | € 109.00 | € 169.00 | On request | On request | Not possible | € 10000.00 |
| Bangladesh | € 76.00 | € 149.00 | € 249.00 | On request | On request | Not possible | € 10000.00 |
| Belarus | € 195.00 | € 295.00 | € 395.00 | On request | On request | Not possible | € 10000.00 |
| Belgie | € 7.95 | € 7.95 | € 7.95 | € 50.00 | € 75.00 | € 10.00 | € 50.00 |
| Brazil | € 149.95 | € 189.95 | € 289.95 | On request | On request | Not possible | € 10000.00 |
| Bulgaria | € 18.95 | € 19.95 | € 31.95 | On request | On request | € 59.99 | € 1000.00 |
| Canada | € 89.95 | € 109.95 | € 169.95 | On request | On request | Not possible | € 10000.00 |
| Chile | € 231.99 | € 331.99 | € 431.99 | On request | On request | Not possible | € 10000.00 |
| China | € 49.95 | € 119.95 | € 169.95 | On request | On request | Not possible | € 5000.00 |
| Costa Rica | € 69.95 | € 169.95 | € 269.95 | On request | On request | Not possible | € 10000.00 |
| Croatia | € 14.95 | € 17.95 | € 24.95 | On request | On request | € 59.00 | € 500.00 |
| Cyprus | € 69.00 | € 99.00 | € 179.00 | On request | On request | € 59.99 | € 5000.00 |
| Czech Republic | € 9.95 | € 10.95 | € 14.95 | On request | On request | € 59.00 | € 750.00 |
| Denmark | € 14.95 | € 15.95 | € 23.95 | On request | On request | € 59.00 | € 750.00 |
| England | € 25.00 | € 35.00 | € 60.00 | On request | On request | Not possible | € 1000.00 |
| Estonia | € 14.95 | € 17.95 | € 24.95 | On request | On request | € 59.99 | € 750.00 |
| Fiji | € 125.00 | € 225.00 | € 325.00 | On request | On request | Not possible | € 10000.00 |
| Finland | € 24.95 | € 25.95 | € 39.95 | On request | On request | € 59.99 | € 1000.00 |
| France | € 9.95 | € 12.95 | € 17.95 | On request | On request | € 34.99 | € 500.00 |
| Germany | € 8.95 | € 9.95 | € 13.95 | On request | On request | € 32.99 | € 250.00 |
| Gibraltar | € 49.95 | € 69.95 | € 109.95 | On request | On request | Not possible | € 10000.00 |
| Greece | € 19.95 | € 22.95 | € 34.95 | On request | On request | € 59.99 | € 750.00 |
| Hong Kong | € 79.95 | € 99.95 | € 159.95 | On request | € 89.00 | Not possible | € 10000.00 |
| Hungary | € 9.95 | € 11.95 | € 17.95 | On request | On request | € 59.99 | € 500.00 |
| Iceland | € 69.95 | € 79.95 | € 119.95 | On request | On request | Not possible | € 10000.00 |
| India | € 79.95 | € 99.95 | € 149.95 | On request | On request | Not possible | € 10000.00 |
| Indonesia | € 79.95 | € 99.95 | € 159.95 | On request | On request | Not possible | € 10000.00 |
| Ireland | € 12.95 | € 13.95 | € 19.95 | On request | On request | € 59.00 | € 750.00 |
| Israel | € 89.95 | € 109.95 | € 169.95 | On request | On request | Not possible | € 10000.00 |
| Italy | € 12.95 | € 13.95 | € 19.99 | On request | On request | € 49.99 | € 750.00 |
| Japan | € 89.95 | € 119.95 | € 189.95 | On request | On request | Not possible | € 10000.00 |
| Jordan | € 59.00 | € 159.00 | € 259.00 | On request | On request | Not possible | € 10000.00 |
| Kosovo | € 149.00 | € 249.00 | € 349.00 | On request | On request | Not possible | € 10000.00 |
| Kuwait | € 79.95 | € 119.95 | € 169.95 | On request | On request | Not possible | € 10000.00 |
| Latvia | € 12.99 | € 15.99 | € 19.99 | On request | On request | € 59.00 | € 10000.00 |
| Lebanon | € 99.00 | € 199.00 | € 299.00 | On request | On request | Not possible | € 10000.00 |
| Liechtenstein | € 39.95 | € 39.95 | € 59.95 | On request | On request | Not possible | € 10000.00 |
| Lithuania | € 11.95 | € 14.95 | € 17.95 | On request | On request | € 59.99 | € 750.00 |
| Luxembourg | € 8.95 | € 9.95 | € 14.95 | On request | € 149.99 | € 49.00 | € 500.00 |
| Malaysia | € 79.95 | € 99.95 | € 159.95 | On request | On request | Not possible | € 10000.00 |
| Malta | € 69.95 | € 79.95 | € 89.95 | On request | On request | € 79.00 | € 1500.00 |
| Mauritania | € 99.00 | € 199.00 | € 299.00 | On request | On request | Not possible | € 10000.00 |
| Mauritius | € 79.00 | € 179.00 | € 279.00 | On request | On request | Not possible | € 10000.00 |
| Mexico | € 89.95 | € 129.95 | € 189.95 | On request | On request | Not possible | € 10000.00 |
| Moldova | € 79.00 | € 179.00 | € 279.00 | On request | On request | Not possible | € 10000.00 |
| Monaco | € 19.95 | € 24.95 | € 49.95 | On request | On request | € null | € 10000.00 |
| Montenegro | € 79.00 | € 179.00 | € 279.00 | On request | On request | Not possible | € 10000.00 |
| Morocco | € 199.00 | € 199.00 | € 199.00 | On request | On request | Not possible | € 10000.00 |
| Nederland | € 6.99 | € 6.99 | € 6.99 | € 40.00 | € 60.00 | € 7.99 | € 50.00 |
| New Zealand | € 139.95 | € 179.95 | € 259.95 | On request | On request | Not possible | € 10000.00 |
| North Korea | € 189.00 | € 289.00 | € 389.00 | On request | On request | Not possible | € 10000.00 |
| North Macedonia | € 49.00 | € 149.00 | € 249.00 | On request | On request | Not possible | € 10000.00 |
| Norway | € 29.95 | € 34.95 | € 49.95 | On request | € 19.00 | Not possible | € 10000.00 |
| Philippines | € 69.00 | € 169.00 | € 269.00 | On request | On request | Not possible | € 10000.00 |
| Poland | € 8.99 | € 8.99 | € 14.99 | On request | On request | € 59.00 | € 500.00 |
| Portugal | € 11.95 | € 14.95 | € 19.95 | € 149.99 | € 299.99 | € 54.99 | € 750.00 |
| Qatar | € 89.95 | € 119.95 | € 179.95 | On request | On request | Not possible | € 10000.00 |
| Romania | € 18.95 | € 24.95 | € 34.95 | On request | On request | € 59.00 | € 850.00 |
| Russia | € 149.99 | € 249.0§ | € 349.00 | On request | On request | Not possible | € 10000.00 |
| San Marino | € 79.95 | € 79.95 | € 139.95 | On request | On request | Not possible | € 10000.00 |
| Saudi Arabia | € 89.95 | € 139.95 | € 209.95 | On request | On request | Not possible | € 10000.00 |
| Serbia | € 49.95 | € 59.95 | € 79.95 | On request | On request | Not possible | € 10000.00 |
| Seychelles | € 169.95 | € 229.95 | € 329.95 | € null | On request | Not possible | € 10000.00 |
| Singapore | € 79.00 | € 79.00 | € 129.00 | On request | € 14.99 | Not possible | € 10000.00 |
| Slovakia | € 9.95 | € 12.95 | € 17.95 | On request | On request | € 59.99 | € 750.00 |
| Slovenia | € 24.95 | € 24.95 | € 29.95 | On request | On request | € 59.99 | € 750.00 |
| South Africa | € 109.95 | € 149.95 | € 219.95 | On request | On request | Not possible | € 10000.00 |
| South Korea | € 79.95 | € 99.95 | € 159.95 | On request | On request | Not possible | € 10000.00 |
| Spain | € 14.95 | € 17.95 | € 19.95 | On request | On request | € 59.00 | € 750.00 |
| Sri Lanka | € 79.00 | € 179.00 | € 279.00 | € null | On request | Not possible | € 10000.00 |
| Sweden | € 18.99 | € 19.99 | € 29.99 | On request | On request | € 59.99 | € 750.00 |
| Switzerland | € 34.95 | € 39.95 | € 69.95 | On request | On request | Not possible | € 1500.00 |
| Thailand | € 79.95 | € 104.95 | € 159.95 | On request | On request | Not possible | € 10000.00 |
| Turkey | € 79.95 | € 89.95 | € 149.95 | On request | On request | Not possible | € 10000.00 |
| Uganda | € 169.95 | € 229.95 | € 329.95 | On request | On request | Not possible | € 10000.00 |
| Ukraine | € 49.95 | € 59.95 | € 89.95 | On request | € 9.99 | Not possible | € 10000.00 |
| United Arab Emirates | € 79.00 | € 109.00 | € 179.00 | On request | On request | Not possible | € 10000.00 |
| United Kingdom | € 25.00 | € 35.00 | € 60.00 | On request | On request | Not possible | € 1000.00 |
| United States | € 79.00 | € 129.00 | € 199.00 | On request | On request | Not possible | € 5000.00 |
| Uzbekistan | € 109.00 | € 139.00 | € 219.00 | On request | On request | Not possible | € 20000.00 |
| Vietnam | € 79.00 | € 109.00 | € 179.99 | On request | On request | Not possible | € 20000.00 |
Shipment
-
Above € 50,- free delivery in NL & BEFree delivery in NL & BEIn stock Ordered before 16:00, shipped today *No stock Notify me when this product is in stockThere is a minimum of 24 hours between the time of ordering and shipping due to the extra care for correct packaging and shipping. For corals additional packaging and shipping charges apply.
The Aquarium Systems NO2 Test is an accurate and easy-to-use test kit for measuring nitrite (NO₂) levels in both freshwater and marine water. Nitrite is a toxic substance that forms when...
Aquarium Systems
Ocean Store
Ocean Store is a modern webshop with a large selection of reef aquarium equipment, supplements and food for your (marine) aquarium. We excel in reachability, service and speed. Not only in delivery of your ordered goods, but also in the adequate answering of your (marine) aquarium related questions. We are happy to share our passion for reef aquariums with you!
Open: Available Monday / Friday 9:00-20:00
Phone: +31(0)78-6456669
€ 0.99 - € 2999.99
EUR
479190
-
Aquarium Systems - No2 test
The Aquarium Systems NO2 Test is an accurate and easy-to-use test kit for measuring nitrite (NO₂) levels in bo... In stock€ 22.99
Aquarium Systems Reef Crystals
DB-10570 Contains an additional addition of important components for lower animal aquariums: calcium, vitamins and trace elements. It also has a special crystal structure that makes it the fastest soluble ...
Aquarium Systems Reef Evolution Salt 22 kg
AS-222016 Reef Evolution Salt is designed to meet the needs of reef aquariums with average fish populations, providing a regular supply of trace elements, calcium, magnesium and alkalinity....
Instant Ocean
AS-216034 Since 1964, Instant Ocean has been the most carefully formulated and manufactured sea salt in the world. An extensive biological and scientific program, particularly with the scientific community, has been...
Aquarium Systems Programme Algae Control Marine
117016634 Program Unidoses Algae Control Marine Standard Problem with cyanobacteria and/or algae? Why do you get cyanobacteria and/or algae? Because there are nutrients in the water and there are no...
Aquarium Systems Programme Algae Control Marine Nano
AS-218027 Program Unidoses Algae Control Marine Nano Problem with cyanobacteria and/or algae? Why do you get cyanobacteria and/or algae? Because there are nutrients in the water and there is no...
Aquarium Systems Programme Start your tank Marine
AS-218031 Program to start your aquarium in 30 days. Setting up a new aquarium can be intimidating and exciting at the same time. But while excitement is good, feeling intimidated is not so good.
Aquarium Systems Probiotics - 24 x 20ml Shots
AS-222077 The normal processes in an aquarium cause the system to become unbalanced, allowing harmful bacteria and algae to take over and negatively affect the water quality. Pr...
Aquarium Systems Programme Maintenance Marine
AS-218013 Maintaining a clean and healthy aquarium is a challenge. Maintaining a clean and healthy aquarium can be a challenge, but with the Maintain Your Tank Program, a simple action every other day can be the first step...
Aquarium Systems Iodine - 24 x 20ml Shots
AS-222073 Soft corals are particularly sensitive to iodide loss and show stunted growth and eventually death if iodide is not replenished. Potassium Iodide Reef Shot safely replaces...
Aquarium Systems Magnesium - 24 x 20ml Shots
AS-222072 Magnesium is the third most important element in the composition of seawater. It is essential for numerous biological processes such as photosynthesis and cell division. It is also used in the formation of...
Aquarium Systems Magnesium Booster 1000 gr
AS-222100 Magnesium is an essential macronutrient that helps regulate calcium and carbonate concentrations. A low magnesium content leads to rapid calcium and carbonate binding. A too high...
Aquarium Systems Strontium - 24 x 20ml Shots
AS-222071 Give your corals the power to grow optimally with Aquarium Systems Strontium Shots. Strontium is an essential element for building the skeleton of hard corals and coralline algae, and supports...
Aquarium Systems - Po4 test
AS-219008 Maintain optimal water quality in your aquarium with the Aquarium Systems PO4 Test. This accurate test kit is specially designed to measure phosphate (PO₄) levels in both freshwater and seawater. E...
Aquarium Systems - No3 test
AS-219007 The Aquarium Systems NO3 Test is a reliable and user-friendly test kit for accurately measuring nitrate (NO₃) levels in both freshwater and marine water. Excessively high nitrate levels can lead to...
Aquarium Systems - Nh4 test
AS-219005 The Aquarium Systems NH4 Test is an accurate and reliable test kit for measuring ammonium (NH₄) levels in both freshwater and marine water. Ammonium is formed from organic waste such as food waste...
Aquarium Systems - PH test
AS-219004 The Aquarium Systems pH Test is a simple and reliable test kit for measuring pH in both freshwater and seawater. pH is one of the most important parameters in an aquarium and...
Aquarium Systems - Vitamins - 24 x 20ml Shots
AS-222076 Complete vitamin boost for all aquarium inhabitants. Aquarium Systems Vitamins are concentrated liquid vitamins that contribute to the health, color, and vitality of fish, corals, and other aquatic life.
Aquarium Systems - Reef Elements - 24 x 20ml Shots
AS-222074 Essential trace elements for a healthy and colorful reef aquarium Aquarium Systems Reef Elements provide a balanced mix of trace elements that are essential for growth, color...
GHL PLM-4L
PL-0370
Reef ceramic frag rocks with pin
RK-D51MP
Jecod TSP-30000
TSP30000
Pump for Tunze Osmolator 3155
TU-5000.020