Salifert Alkalinity Calcium Magnesium Combo Test Kit
$44.89
Price: $44.89
(as of Oct 15, 2025 08:00:44 UTC – Details)
Salifert aquarium water test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference from other chemicals within the water. Simply put, these are the best test kits you can buy- hands down. The sharp, contrasting color changes make results easy to read so there’s no second guessing. Trust your aquarium to Salifert. Detects small changes in carbonate hardness which can affect pH and the growth of both fish and coral. Salifert Magnesium Profi-Test Magnesium is present in natural sea water in a fairly high concentration (1350 – 1500 mg/L) and is an essential element of chlorophyll which is necessary for photosynthesis. Without photosynthesis plants, algae and coral would not be able to survive. Magnesium also helps to maintain the correct combination of calcium concentration and alkalinity as it slows down the formation of calcium carbonate which can absorb many important trace elements within the aquarium. Maintaining a correct magnesium concentration is therefore very important and is indirectly responsible for fast coral and calcareous algae growth by making it possible to maintain correct calcium and alkalinity figures. Magnesium is depleted by algae growth and also by the use of excessive kalkwasser or by going far beyond natural calcium, alkalinity and pH values. The Salifert Magnesium Profi-Test is easy to use and accurate with measurements in steps of 30 mg/L. Results are not affected by strontium and calcium interference. Can be used for marine water only. Calcium and strontium will not interfere when their total concentration is between 200 and 650 ppm. This is mostly the case. Up to 50 tests.Warning!Keep out of reach of children. Not for consumption.
Is Discontinued By Manufacturer : No
Product Dimensions : 5.2 x 5.1 x 4.2 inches; 11.68 ounces
Item model number : SALCORE
Date First Available : July 22, 2013
Manufacturer : Salifert
ASIN : B00E3FKH06
Best Sellers Rank: #25,393 in Pet Supplies (See Top 100 in Pet Supplies) #31 in Aquarium Test Kits
Customer Reviews: 4.4 4.4 out of 5 stars 538 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Salifert Alkalinity Test Kit: Measures calcium, magnesium and alkalinity levels in water
Easy to Use: Simply add drops to water sample and wait for results
Accurate Results: Provides precise measurements of essential minerals in water
Convenient Packaging: Comes with 1 test kit and 10 test strips for multiple uses
Salifert Brand: Made by a trusted brand known for quality water treatment products
Customers say
Customers find this mineral supplement test kit to be of good quality from a trusted manufacturer, with accurate readings and reliable results. The tests are easy to use and read, and customers appreciate the good price. However, some customers report receiving the product with missing pieces. The instruction quality and pain relief aspects receive mixed feedback.
Ulises –
Great!
Very good. more accurate than other brands
Rhian Rodriguez –
Bad packaging. Good value.
Works very well. Accurate readings. Packaging could have been better. Boxes were placed in clear plastic bag and taped. Some boxes were crushed. No damage to the test tubes thankfully. Would have been better had they been shipped in a box.
Lauren Bystricky –
Perfect, Item Not Expired
Iâve ordered similar test kits before from other businesses and received test kits that were either expired or close to expiring. However, of the packages I received the earliest expiration date was 12/2026. Overall Iâm very happy with this purchase and glad I was sent a product that wasnât expired.
M Phelps –
They work
Salifert is the best IMO but frequently the color change is extremely hard to determine.That is why only 4 stars.
Douglas Crawford –
A-ok
3 salifert test kits for one low price..what more can one ask for? Came well packed, complete, and no where near the expiration date. This is a good deal.
Mad Mensch –
Wasnât Clear that itâs ONLY for Saltwater Testing
Reef keepers may balk at this negative review as user error, and I guess it partly is, however nothing on the box or in the main product description lists this test as saltwater only. I keep mainly freshwater planted aquariums and we also closely monitor calcium and magnesium in the water since weâre constantly dosing fertilizer. Most test kits in the market are for both saltwater and freshwater so I assumed this kit was the same however the issue is that there is much less calcium and magnesium in freshwater vs saltwater and the testing range of this kit can only detect high levels of calcium (~350ppm and above) and magnesium (unsure of min). Whatâs worse is Amazon doesnât accept returns for this item at all so Iâm left with $50 down the drain.As far as the kit itself, as a first time user I will say that it was confusing for me. Before realizing this kit doesnât work for freshwater I went through multiple attempts and the instructions werenât great. As an example for the calcium test you have to draw 1ml of testing liquid however the shape of the syringe provided creates a large air bubble so you are really only able to draw around .8ml of liquid. The instruction then tells you NOT to try and remove the air bubble but then it says to gradually deposit the â1mlâ of liquid which you never fully obtained in the first place. I think the issue is a translation problem but nevertheless itâs confusing and I saw multiple posts online with people confused about the process.Overall though I know Salifert is general considered to be a good brand, just apparently with bad translation.
Ruben –
Reef water testing
Had no problem using the tests they make it easy to understand! Will continue to use.
Anthony –
Exactly as described
Good accurate tests that work really well. The delivery was quick and well packed.