Seachem Multitest – Nitrite and Nitrate

Seachem MultiTest™ – Nitrite & Nitrate Test Kit

Nitrite and nitrate are two parameters you really want under control if you care about fish health — and this kit tells you exactly where your tank stands, without guesswork.

Nitrite is toxic and in any well-established aquarium it should be completely undetectable. During the cycling phase, though, it can spike hard — sometimes exceeding 20 mg/L. That’s where this test kit really earns its keep.

Nitrate, on the other hand, is relatively non-toxic, but letting it creep up over time is one of the biggest reasons fish slowly decline. Keeping it under 20 mg/L is ideal for long-term health, colour, and breeding success.

The Seachem MultiTest™ Nitrite/Nitrate kit gives you extremely fine resolution, allowing you to catch problems early — before your fish show signs of stress.

What makes this test kit so good

• Measures nitrite down to <0.1 mg/L

• Measures nitrate down to <0.2 mg/L

• Works in both freshwater and marine aquariums

• Results are expressed as nitrite and nitrate (not nitrogen)
  (If you ever need nitrogen values, simply divide by 3.3 for nitrite and 4.4 for nitrate)

• Performs over 75 tests

• Includes a reference sample so you can validate your results and trust what you’re seeing

• Manufactured by Seachem, one of the most trusted names in the aquarium hobby

Ideal for:

• Cycling new aquariums

• Monitoring established tanks

• Discus, shrimp & sensitive species

• Heavily stocked setups

• Planted aquariums

• Anyone who wants confidence in their water quality

This is the kind of test kit you buy once and keep using for years. Accurate, reliable, and genuinely useful - not just a “nice to have”.

If you want healthier fish, fewer losses, and actual confidence that your tank is where it should be, this kit is a no-brainer.