5 out of 5
Aquarium Pharmaceuticals AP12069 (API) Calcium Test Kit
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Pricing Note
Handling Fee Reminding: $3.00 handling fee will be charged for ALL items from the same series, product code beginning with VAS- if you order less than $50.00.
Product Description
Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop as invertebrates use calcium in aquarium water. The Aquarium Pharmaceuticals (API) Calcium Test Kit kit allows you to easily and accurately measure calcium levels and maintain a healthy reef aquarium.
- The Aquarium Pharmaceuticals (API) Calcium Test Kit measures calcium levels as low as 20mg/L
- Uses titration method, with easy to see color change for precise measurement
- For use in reef aquariums
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By Joao Junior
Date: August 28, 2013
This product complies exactly what it promises, tests are carried out with precision.The API products are excellent. Recommend the use of this product.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By cg1982
Date: July 25, 2013
As far as I can tell this kit is accurate, although I have never tested it against another kit. Gives calcium readings in 20ppm increments (360, 380, 400, 420, etc.) which works well for me. Overall, I believe it serves its intended purpose of giving you calcium readings.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Victor Tamayo
Date: February 21, 2013
about the same price as the store just didnt want to have to go search for it somewhere, have all the kits from api.
Rating: 
[3 of 5 Stars!]
[3 of 5 Stars!]
By M. Ness
Date: February 07, 2013
It's true it does take up to 25 drops to get a reading, however the first 15 or so can be added in batches of 4 or five. Espically if you already kinda know what your reading should be. You can just add up until that point, then slow down for the most accurate reading. It normally doesn't take more then 3 minutes or so.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By cindy a
Date: August 18, 2012
The trick is for a coral reef tank, I start with 17 drops that would put my calcium at 340 then i go 2 drops at a time, very easy, best one i have used yet and inexpensive.NateColorado
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Hopels
Date: June 19, 2012
API is the bargain end of SW testing equipment. Typically good for fish only tanks, soft tanks, and occasionally LPS tanks. However, since calcium needs only to stay constant and in a certain range, the test doesn't necessarily need to be as accurate as a Nitrate test where you need to be able to monitor nitrates between 0-5ppm. So long as you occasionally have your calcium tested using Salifert or other higher end brand by your fish store or friend, this test works well for week to week testing.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]