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
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Measures nitrite down to <0.1 mg/L
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Measures nitrate down to <0.2 mg/L
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Works in both freshwater and marine aquariums
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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)
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Performs over 75 tests
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Includes a reference sample so you can validate your results and trust what you’re seeing
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Manufactured by Seachem, one of the most trusted names in the aquarium hobby
Ideal for:
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Cycling new aquariums
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Monitoring established tanks
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Discus, shrimp & sensitive species
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Heavily stocked setups
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Planted aquariums
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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.
