SKU: 84159126935

API Calcium Test Kit

$191.25 $212.50
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

API Calcium Test KitAPI Calcium Test Kit API Calcium Test Kit measures calcium levels in reef aquariums to help maintain the health of invertebrates such as corals and crustaceans. Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, and even some type of encrusting algae, need calcium to grow and remain healthy. Over time, the calcium level drops as it is used by invertebrates, or as it reacts with

API Calcium Test Kit

API Calcium Test Kit measures calcium levels in reef aquariums to help maintain the health of invertebrates such as corals and crustaceans.

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, and even some type of encrusting algae, need calcium to grow and remain healthy. Over time, the calcium level drops as it is used by invertebrates, or as it reacts with excess phosphate. The API® CALCIUM TEST KIT measures calcium levels as low as 20 mg/L to help you keep your reef inhabitants healthy.

Sizes: Contains 2 test bottles, easy-to-ready instructions, and a glass test tube

FAQ

Do I need to test calcium parameters in a freshwater aquarium?

No, calcium levels need to be monitored and maintained in reef or marine aquariums, as improper levels can be harmful to corals and crustaceans.

How often should I test my calcium levels?

For best results, test calcium levels with API CALCIUM TEST KIT in your saltwater tank weekly.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84159126935

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4.9 ★★★★★
Based on 1862 reviews
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Person of Knowledge
Alexandria, US
★★★★★ 5
The Perfect Tool - Life is Short So Just Buy It.
Size: 88mm x 15
So. Life is too short to struggle with little demons and other inconveniences. I change oil in all my cars, trucks, and SUVs. One of my cars is a V6 Hyundai and the filter cartridge is inside a housing that is sometimes more than a tad inconvenient to loosen and screw back in place. My regular filter removal tools including strap style as well as a three arm gripper type just did not perform very well. I saw this thing, ordered it, and man...it is perfect. The metal top allows a wrench ( spanner) or a socket wrench to be used. I have a fancy Snapon torque wrench which I can also use just to be fancy. In any case removing and re-securing the filter housing on the Hyundai V6 is now a breeze. The cap wrench itself is solid and very well constructed Five stars and count me in as impressed. Well done CTA Tools !!!
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Reviewed in the United States on February 6, 2026
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Verified Purchase
Lisa
Houston, US
★★★★★ 5
Good fit and easy filter removal
Size: 88.5mm x 16
Purchased this for my 2022 Volvo XC60 PHEV. Used up all my 'free' dealer oil changes and not ready to drop hundreds on a simple operation. Removal of the oil filter housing on this car would be nearly impossible without this tool due to its location. With it the process was simple. On a side note, the dealership 'pros' stripped every one of the plastic splash guard nuts. Obviously in a hurry with a power tool. They also did not change out the smaller o ring included with the filter. It's a pain to remove and mine was hardened and likely original. Anyway, placed this tool in drawer with the rest of my oil wrench collection.
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Reviewed in the United States on May 27, 2026
W
Verified Purchase
Wookieecantina
Fort Morgan, US
★★★★★ 5
Perfect fit on an AMSOIL Oil Filter EA15K51n
Size: 76mm x 14
This is a very well made oil filter wrench and while some are complaining about no exterior weld on the drive nut, if you look inside the weld is very plain to see and appears to be CNC welded so it's perfect and quite strong. I like the finish of the wrench, it's easy to wipe off and if there is oil or debris anywhere on it, you'll be able to spot it immediately and wipe the part off to insure a nice, clean installation.
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Reviewed in the United States on December 30, 2024
B
Verified Purchase
Bowzr
Cuba, US
★★★★★ 5
Mobil 1 M1-103A
Size: 64mm x 14
Fits Perfect on Mobil 1 M1-103A.. for 2010 Scion XB. Snaps on and doesn't fall off, easily removed after the oil filter is loose.. Very happy with the fit, function and quality!
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Reviewed in the United States on August 17, 2025
A
Verified Purchase
Aspen Valdez
West Palm Beach, US
★★★★★ 5
Fits 2011 335xi n55 prefect
Fits my 2011 335xi n55 engine perfectly. Comes on and off easily and gets the filter loose quickly. Amazing quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026

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