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Monitor Calcium/Magnesium HIGH Salinity (Salinity > 5 PPT) Test KIT (120 Tests) - Monitor Aquarium and aquaculture Water Quality

  • Based on 43 reviews
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Availability: 11 left in stock
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Arrives Friday, Jul 17
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Features

  • Test calcium (Ca) and magnesium (Mg) level in water. Suitable for brackish water and seawater with the salinity higher than 5 part per thousand (ppt).
  • For freshwater and marine aquarium and aquaculture, pond water, ground water, drinking water
  • Ca range from 0 800 part per million (ppm) with the resolution of 40 ppm per drop. Mg range from 0 1725 ppm with the resolution of 50 ppm per drop.
  • Can measure 120 tests
  • Easy to use, accurate, fast test, economic

Description

Determine calcium, magnesium in water samples for aquarium and aquaculture. The water sample can be brackish water and seawater with the salinity higher than 5 ppt. It is designed to be compact size and allow to measure 120 times. The test can be performed simply, quickly and easily. This titration test kit first carry out the calcium test (0 – 800 ppm), which has a sharp color change, going from pink to blue when reach the calcium level in the sample. Then follow by the magnesium test (0 – 1725 ppm) which also has a significant color change, going from orange to green, when reach the magnesium level in the sample.

Package Dimensions ‏ : ‎ 6.1 x 4.88 x 1.3 inches; 7.2 ounces


Item model number ‏ : ‎ LS-9N3Q-QLEZ


Date First Available ‏ : ‎ June 8, 2021


Manufacturer ‏ : ‎ JB CHEMICAL & PLASTIC Co., Ltd.


Best Sellers Rank: #98,050 in Pet Supplies (See Top 100 in Pet Supplies) #159 in Aquarium Test Kits


#159 in Aquarium Test Kits:


Customer Reviews: 3.9 3.9 out of 5 stars (60)


Item Weight: 7.2 ounces


Manufacturer: JB CHEMICAL & PLASTIC Co., Ltd.


Item model number: LS-9N3Q-QLEZ


Date First Available: June 8, 2021


Item Package Dimensions L x W x H: 6.1 x 4.88 x 1.3 inches


Brand Name: Generic


Target Audience Keyword: fish, shrimp, reef, water quality


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Love this kit - this can be used to check YOUR Ca/Mg levels
I wanted to see how well this kit might work to test wee for Ca and Mg and it worked perfectly. Use 5 milliliters (use a syringe) + 1 drop R1 + 1 drop R2 for Ca. There should be no color change on R1 (unless there is contamination from a previous test) and just cloudiness. Shake vigorously for at least 10 shots. Add 1 drop of R2 and it should be a rose color. Then titrate with T until there is no rose color and it will be a green color (versus blue due to wee). 6 drops would be ideal Calcium (not too much not to little). For Mg, in 5 mil add the scoop and again shake vigorously. It may appear green at first but you can beat it into an army brown color. Then titrate w/ T till all the brown shade is gone (green again - can be vivid green for true endpoint). Ideally it should take more drops for Mg endpoint than Ca endpoint. Good way to check Mg supplements are working (or if Ca is overwhelming). ... show more
Reviewed in the United States on June 7, 2024 by doglar
    • pleasantly surprised
tested with name brand kits with same results ,like the fact it has a wider range, also like the dropper bottles instead of syringes , small spoon connected to lid means you'll never loose it.But most importantly it's accurate and being 2 into 1 it easier and half the cost seems to last a long time too at first I was skeptical never heard of it , now it would be painful to go back to the old routine with separate kits I highly recommend it.Dont let the generic no name scare you. ... show more
Reviewed in the United States on April 25, 2023 by Lukewv
    • Testing supplies
Not my favorite it's difficult to get a consistent reading
Reviewed in the United States on September 21, 2025 by Rich
    • Easy to use
I’m glad I took so much chemistry because it made this really easy. My mag was low so I added some, waited a day, it was still low, added some more, and test showed better results. Makes sense to me! Also like not having to use 2 separate test kits.
Reviewed in the United States on March 24, 2022 by Ceiba
    • Waste of money
Zero stars. The test results are highly inaccurate. I followed instructions carefully and had a friend test a second time too. The Monitor test kit measured my calcium level at >700 on both occasions. The readings seemed high. To be sure, I borrowed a Hanna test meter kit and used my API reef kit and both measure calcium between 380 and 400. If the Monitor calcium test result is off then their magnesium test will be off too as it is dependent on the first test. Don't trust this test kit for your expensive reef tank. ... show more
Reviewed in the United States on January 3, 2026 by Tw
    • Accurate and quick
Calcium test is dead on accurate. It's easy to titrate because the bottle design and large viles are better than any other test on the market. Results compare to ProLab with very low margin of error. Mag test is also accurate but titrating uses a lot of T fluid no different than other kits. Excellent value for the money. ... show more
Reviewed in the United States on October 16, 2023 by Brian Barr
    • Works as intended
Works as described, good price
Reviewed in the United States on July 23, 2025 by Carrie Weber
    • Great and simple to use.
This is great and simple to use. I wanted to return initially but I wanted to give it a try. It works and seems to be accurate.
Reviewed in the United States on May 6, 2025 by truthwillsetu3

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