API Freshwater Master Test Kit, Aquarium Water 850 Test Kit
API Freshwater Master Test Kit, Aquarium Water 850 Test Kit
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API Freshwater Master Test Kit, Aquarium Water 850 Test Kit

Key item features

  • Contains one (1) API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, including 7 bottles of testing solutions, 1 color card and 4 plastic tubes with cap
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and cause fish loss
  • Accurately monitors 5 most vital water parameters levels in freshwater aquariums: pH, high range pH, ammonia, nitrite, nitrate
  • Designed for use in freshwater aquariums only
  • Use for weekly monitoring and when water or fish problems appear
Price when purchased online

More seller options (1)

Starting from $39.98

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Customer ratings & reviews

4.8 out of 5 stars
stars
203 ratings116 reviews
How item rating is calculated
  1. 5 stars86% (174)
  2. 4 stars9% (18)
  3. 3 stars3% (6)
  4. 2 stars1% (2)
  5. 1 star1% (3)

Reviews summary

Pros

  • : Simple operation with minimal guidance required.
  • : Offers affordable water testing options.
Generated by AI
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Showing 1-3 of 116 reviews

Jan 17, 2026
juliann
Item details
Size: 9.13 x 3.5 x 4.63
Sold and shipped byPet Paradise, Inc
5 out of 5 stars review

Verified Purchase

API Testing is a great kit.

I was using another brand dry strips (not impressed) %26 read to try API Master Kit. A big difference. Company does great job explaining why you do the specific tests %26 how to do each test. I very much like on each solution it again lists how many drops you need. Very nice case for test bottles %26 drops. Will buy again.

Helpful?3IRG6QUXI6W024871748
Feb 28, 2021
WalmartCustomer
Item details
Size: 9.13 x 3.5 x 4.63
5 out of 5 stars review

Verified Purchase

Must-have for any betta owner!

This kit is absolutely excellent. It's a bit pricier than buying water test strips, but more cost efficient in the long-run if you are getting into betta keeping and need a way to test your water regularly. It's also WAY more accurate than test strips and easy to use. Highly recommend for both veteran betta keepers and novices (like me) who realized they need to monitor their tank a little better to keep their betta friends happy and healthy. :-)

Helpful?3IRG6QUXI6W024871748
Oct 27, 2016
Ginger
5 out of 5 stars review

Verified Purchase

No problems

I read someone else say they regretted the kit did not come with a dropper, but I happened to have had one already. IF you do not have a dropper, it would be very difficult to put the drops in the vials.

Helpful?3IRG6QUXI6W024871748