Red Sea Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg)

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  • Choosing the Best Aquarium Test Kit

Red Sea Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg)

96% Recommend this to a friend (151 of 158)

SKU: 207096

reg. $59.99

Special Price: $50.99

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Quick Overview

Why does BRS recommend this?

Our favorite all around test kits are the red sea kits.  With easy to follow directions, and consistent results, we always have a Red Sea Reef Foundation test kit in our testing closet.  The Red Sea multi test kits are by far the best value for purchasing multiple test kits.

Amazing Value. High quality and reliability.

Monitor the balance of Calcium, Alkalinity and Magnesium in your reef tank's foundation with this all-in-one test kit from Red Sea.

Kit includes:

  • 75 Calcium test kits

  • 75 Alkalinity test kits

  • 60 Magnesium test kits

  • Analytical grade glass vials

  • Easy-to-use, high precision Titrator

  • Affordable reagent refills


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Product Questions


I just have a question in determining the amount of titrant used for the test. So if I start with 1ML and I end with 0.46ML left then I would subtract .46 from 1.0 to get 0.54 titrant used. Then I would use 0.54 as my number on the card to get my results. Is this the correct process?
Question by: Donnie Alderman on Jun 29, 2014 11:41:00 AM
Hi Donnie,
That is correct :-) You compare the amount of titrant used to the chart, so your math looks good to me!
Answer by: Bulk Reef Supply on Jun 29, 2014 11:41:00 AM
So my question is now that it is winter. Is it bad for this test kit to be exposed to below freezing temps during shipping.
Question by: Michael on Jan 20, 2016 11:07:00 AM
Great question!
These test kits tend to have a lower than normal freezing temperature and typically we have not received much negative feed back during shipments in winter. If you have any issues or questions feel free to let us know and we will be more than willing to help!
Answer by: Connor (Admin) on Jan 27, 2016 7:09:00 PM

Full Details

Owners Manual


Red Sea Reef Foundation Pro Multi Test Kit Contents

Test Name Element # of Tests Accuracy Range Test Type
Calcium Ca 75 ±2.5ppm Titration
KH/Alkalinity KH 75 ±0.025 Titration
Magnesium Mg 60 ±10ppm Titration



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  • Awesome kit! By Erik on 3/29/2016

    This is an awesome test kit, once you get the hang of how to perform the tests, seems complicated but it is not. Pretty accurate and keeps my reef happy! Only thing I don't like is, it's hard to get everything to fit back into the black box once you take it out!
  • very easy to use test kit By G-man on 3/26/2016

    Very easy to use test kit. Also the price is great compared to buying each test kitCRESTWOOD individually.
  • Magnesium test doesn't work By Brian on 3/25/2016

    Been reefing for over 3 years now, and I got this product based on BRS recommendation. I like the titrator, but test results are very inaccurate. I do not dose magnesium at all, so there is zero reason as to why my magnesium levels should be any higher than my salt mix (I use reef crystals) but EVERY time I have tested with this kit my magnesium reads 1600 ppm. That is absolutely impossible, magnesium doesn't form out of nowhere in the home aquarium. I can see ALK and calcium levels differing due to many different factors, but not magnesium. Beyond frustrated. Wish I would have just spent the extra $70 and got Hanna checkers for all of these.
  • Bad kit By Todd C. on 3/10/2016

    The alkalinity test color chart shows are dark red upon complete titration, but no matter how far you take the test, I've never seen anything but a light pink. So this test parameter (for alk) is worthless to me.
  • Easy & Accurate By Jeffrey on 2/18/2016

    I've used API and Salifert before and this is my go-to for Mag, Cal, Alk. Very easy to do and accurate. Very well made too. I like that this is a kit, and a box that stores everything and you just buy re-fills when necessary.
  • easy to use By Victor on 2/18/2016

    when I first got it I was intimidated with everything included, but after reading and watching youtube videos it couldn't be easier
  • got a bad batch By Kevin on 2/16/2016

    I like the quality of the test components but my Alk test is hard to read because it changes from blue to orange to yellow instead of blue to red. I contacted Red sea via email but got no response. CA and MG test work great. I wish red sea would replace my alk test but I can't get a hold of them. Will buy different test when I run out of CA and MG test solution. I have been using the Hanna Alk test and love it!
  • Nice kit By Paul on 2/12/2016

    This is a pretty decent kit with a nice case and water resistant reference cards. Its pretty simple to use as well. My only complaint with it is that i'm not exactly sure when to take the reading as there seems to be a couple of drops where the color change happens. So i'm not sure if I take the reading just as it changed, in the middle of the change, or after it stops changing color. Of course each drop is a .2 reading so its not a huge difference in the outcome.
  • Great product By Jose C. on 11/14/2015

    At first it was confusing. It takes time getting the correct color in the vale. But with a few practices and some patience it became easy. The videos on youtube were a great help also.
  • Good quality product By Daniel on 10/15/2015

    Good quality product, nicely fits into a hard plastic box for storage, the cards are laminated and everything is designed to last. Everything is color coded so you use the right siringe with each test. Takes some time to do the tests, but the accuracy is worth it, good things don't come easy.
  • Not bad By Paul on 6/28/2015

    Actually, these tests work well, now that my lfs gave me some pointers. Instructions could be better regarding timing of the drips and what to watch for with the color change.
  • Good Kit By RICHARD on 6/16/2015

    The 1 ml titration syringes have different color tips, but I still labeled them to make sure I only use a certain 1 ml syringe for each test. Easy instructions to follow.

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