Aquarium Pharmaceuticals, API, MARS Fishcare

API Saltwater Calcium Test Kit

AP3137


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This kit allows for easy and accurate measuring of calcium levels to help in maintaining a healthy aquarium.

Why test for Calcium?
Monitoring calcium levels is essential for keeping a successful reef aquarium. Reef organisms use calcium to build a calcium carbonate skeleton. Over time, as the calcium in the water is utilized, the calcium level will gradually drop. Calcium must be present for corals to grow. Even reef invertebrates such as crustaceans, mollusks and encrusting algae, require calcium to grow and remain healthy.

Calcium levels drop as it is used by invertebrates or as it reacts with excess phosphate. Making a partial water change may help to maintain proper calcium levels, depending on the brand of salt mix. Special calcuim additives are also available. Elevated phosphate precipitates calcium, rendering it unavailable to reef organisms. Phosphate enters the aquarium from tap water and as a byproduct of fish and invertebrate metabolism. Use Aquarium Pharmaceuticals Phosphate Test Kit to test for phosphate. If necessary, use Aquarium Pharmaceuticals Phos-Zorb™ to remove excess phosphate. Phos-Zorb is a special phosphate-removing filtration media that comes in a flow-through pouch. It conveniently fits into any filter.

Carbonate hardness (KH), often referred to as alkalinity, is important for reef organisms. As carbonate levels drop the pH becomes unstable. The carbonate hardness level (KH) should be 7-10 dKH [125 – 179 mg/L (ppm)] to encourage growth in a reef aquarium and maintain pH. Use the Aquarium Pharmaceuticals KH Test Kit to measure the carbonate hardness. Add Proper pH 8.2 to increase carbonate hardness and stabilize the pH to 8.2.

Product Manuals & Documentation

API Saltwater Calcium Test Kit

Owner's Manual available for download in Adobe PDF file format

API Saltwater Calcium Test Kit

Additional Info 1 available for download in Adobe PDF file format

Manufacturer Info

Aquarium Pharmaceuticals Aquarium Supplies
Aquarium Pharmaceuticals (API) has been helping people take good care of ornamental fish for over 40 years. Their research and development scientists have advanced the care of fish with all-natural medications, stable bacteria for biological filtration, one-bottle test kits, consumer-friendly dosing caps and much more. They’ve received over 25 global patents for their breakthrough innovations in the aquatics industry. And they continue to look for ways to improve the fishkeeping experience for hobbyists. Research. Experience. Dedication to scientific, quality treatment for healthy fish. It’s what makes API the first choice of aquarium owners. API manufactures and sells hundreds of products across many different product categories, including aquarium and pond treatments, aquarium equipment, aquariums and fish nutrition.

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Overall, others give this:

  • 4.2

35 Reviewers (91%) would recommend this

Overall Rating:

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5  Star
 15
4  Star
 15
3  Star
 3
2  Star
 1
1  Star
 1
 
5
5.0
Calcium test kit

reviewerbadge
PROS
Price and ease of use.
CONS
Gives approximate measurements
REVIEW
I have been using this test kit for over 6 years now. It may not be the best kit for exact measurements, but it is excellent for trends and is very easy to use. I would not be without it. It is quick, easy and the price is right. It is my primary calcium kit. But I do use a second test kit as a back...Read More
  • 1
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5
5.0
Good calcium test
reviewerbadge
PROS
Easy to use and consistent
CONS
Titration is never fun
REVIEW
Good calcium test. It's the standard titration test. I recommend always doing one drop beyond what you think is the final color so that you really know where the endpoint is, just don't count that last drop towards your system values.
  • 1
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3
3.0
Not very consistent
reviewerbadge
REVIEW
I can say that the test kit doesn't really provide consistent results which to be fair isn't that great any most other Calcium test kits.
  • 0
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5
5.0
easy to use

reviewerbadge
PROS
easy to use
CONS
not very accurate
REVIEW
the stuff is basic .just add drops until changes color
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5
5.0
Nice
reviewerbadge
PROS
Works
CONS
Gotta use it to make it work.
REVIEW
Works for all you need for basic marine water testing.
  • 1
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4
4.0
does the job
reviewerbadge
PROS
complete kit with nice glass tube
CONS
dropper bottle isn't as accurate/consistent as a syringe
REVIEW
Clear instructions. Easy to read. It does the job for a decent price.
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4
4.0
API Calcium test kit

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REVIEW
I like this kit its fast, easy and accurate.
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Write Your Review Earn 15 Points when you write a review
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Overall, others give this:

  • 4.2

35 Reviewers (91%) would recommend this

Overall Rating:

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5  Star
 15
4  Star
 15
3  Star
 3
2  Star
 1
1  Star
 1
 

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