Water Chemistry Analyzer

Enter your test kit readings and we will diagnose any issues and tell you exactly how to fix them

What kind of tank do you have?

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Freshwater

Koi, goldfish, tropical fish

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Outdoor Pond

Koi ponds, water gardens

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Saltwater

Marine and reef tanks

Your Water Readings

Enter whatever readings you have from your test kit. Leave anything blank that you have not tested yet. Even just one or two readings can help!

pH (6.5-8.5)

Ammonia (ppm)

Nitrite (ppm)

Nitrate (ppm)

Temperature (F)

>I have more readings to add (KH, GH, salinity, etc.)

Tank Volume (gallons)

Last Water Change

Always verify with a physical test kit. This is guidance only, not veterinary advice.

New to water testing? We recommend the API Master Test Kit — it covers pH, ammonia, nitrite, and nitrate all in one box and is the most trusted kit among freshwater and koi keepers. Available at most pet stores or online.