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Salifert Aquarium Calcium Test Kit

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About This Item

Details

  • Accurately measure calcium levels in aquarium water.
  • Measures calcium with an accuracy of 10 mg/l.
  • Changes color when it detects even minor fluctuations.
  • Helps resolve calcium contents.
  • Helps you maintain healthy water for aquarium setups.

Instructions

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Questions & Answers

1 Customer Questions

Can you use test on freshwater aquarium?

Answer by Chewy • Jul 18, 2023
This test kit is suitable for use in freshwater aquariums.
Reviews
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4.0
Rated 4 out of 5 stars
8 Ratings
Terms & Conditions

3 Customer Reviews

Rated 5 out of 5 stars
By Joshua on Mar 21, 2026

Reliable calcium test for reef tanks

This calcium kit has worked well for me. It’s pretty easy to run once you’ve done it a few times, and it gives me a lot more confidence when checking calcium in

This calcium kit has worked well for me. It’s pretty easy to run once you’ve done it a few times, and it gives me a lot more confidence when checking calcium in my reef than just guessing based on coral appearance. I like having a test that’s straightforward and seems consistent from one test to the next. Definitely a useful kit for reef tank maintenance

By Joshua on Mar 21, 2026
Rated 1 out of 5 stars
By John on Jun 23, 2025

Off the chart readings

The test I received is not giving accurate results. I followed the instructions closely and have taken multiple tests with both Instant Ocean Reef Crystals and Instant

The test I received is not giving accurate results. I followed the instructions closely and have taken multiple tests with both Instant Ocean Reef Crystals and Instant Ocean Sea Salt mixed to 1.026. In both cases I must titrate over 1.0 ml of reagent in order to change the sample from pink to blue. There is no way that these mixes are more than 500ppm. I also have the Salifert KH test and Mg test kit and they appears to be giving me reasonable readings. This Calcium test kit has an 10-2029 expiration date. I will likely go back to the Red Sea test kits which are pricier but have been dependable for me in the past.

By John on Jun 23, 2025
Rated 5 out of 5 stars
By John on Oct 22, 2025

Good

good price

good price

By John on Oct 22, 2025