Soft Opening: Try our new website.

Marine DepotMarine Depot sells the best aquarium equipment, nutrition and supplements the world has to offer. Take your tank from ordinary to extraordinary today!
free shipping over $39
714-385-0080
Contact Us
Giesemann Aquaristic

Giesemann Professional Magnesium MG Test Kit

CV02962

Add to Wishlist
Low Price Guarantee
Refer Friends & Get $10 |

Magnesium is a chemical element with the element symbol Mg. Magnesium is extremely important for most reef-inhabiting species, foremost however for corals. Magnesium in conjunction with calcium is responsible for the alkalinity (KH), i.e. the hardness of water. In a salt water aquarium, magnesium is consumed in significantly lower amounts than for example calcium. Nevertheless it should be monitored regularly.

The magnesium content in the water is dependent on the salt concentration. The natural concentration of magnesium in salt water is 1,310 mg/l (which equals a salt content of 3.5%). The lower the salt concentration, the lower the magnesium content. In practice, a reef aquarium should have a 1:3 ratio of calcium to magnesium. In other words, a calcium value of 400 mg/l should equal a magnesium concentration of approx. 1200 mg/l.

The Giesemann magnesium test offers an uncomplicated, fast and precise measurement of the magnesium concentration in salt water aquariums.

By the way: many artificial reef ceramics also release magnesium into the water. Therefore, especially for newly equipped aquariums, it is essential to monitor the magnesium concentrations closely.

Giesemann Professional Magnesium MG Test Kit (40 Tests)

Manufacturer Info

With over 25 years’ experience, Giesemann Aquaristic has made a name as the world leader in aquarium lighting technology, illumination products and aquarium control systems. In their array of products, you will find all your aquarium needs including innovative modular furniture systems, technical installations for water treatment, test kits and other accessories.

Ask a Question Earn 15 Points when you answer a question
Sort By :
 
9 Questions
Displaying questions 1-9
 
 
Sort by:
 

Overall, others give this:

  • 4.0

2 Reviewers (100%) would recommend this

Overall Rating:

download image
5  Star
 0
4  Star
 2
3  Star
 0
2  Star
 0
1  Star
 0
 
4
4.0
Great test and value
reviewerbadge
PROS
Great value!!
CONS
German to English can have misprints on box
REVIEW
Tests work fine. Some boxes can have English inaccuracies and misprints on instructions. It's all very easy to figure out if you have commons sense though.
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
4
4.0
Accurate test
reviewerbadge
PROS
Accurate
CONS
Syringes need work
REVIEW
These test work just as well as some of the other brands on the market. I had accurate readings but the precision syringes could use a little work to improve ease of use. Overall they are nice tests.
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
Write Your Review Earn 15 Points when you write a review
Sort by:
 

Overall, others give this:

  • 4.0

2 Reviewers (100%) would recommend this

Overall Rating:

download image
5  Star
 0
4  Star
 2
3  Star
 0
2  Star
 0
1  Star
 0
 

Free, Fast, and Flexible Shipping Options

  • $5.99 flat rate shipping for orders under $39

    Most orders under $39 ship for only $5.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.

  • free shipping for orders $39+

    We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $39 or more!

  • free faster shipping for orders $250+

    Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $5.99—or spend $250 and we'll upgrade you automatically!

  • need your order even faster? no problem!

    Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.

  • buy it today and we'll ship it today

    Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.

  • live plants, live foods, and frozen foods delivered to your door

    We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!

Learn More About Shipping

60-Day Return Period with Easy Online Returns

Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.

A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.

We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.

Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.

Learn More About Returns

Earn 5% Cash Back for Most Purchases

Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!

  • Earn 5 reward points for every $1 you spend to get 5% cash back
    Most Products
  • Earn 1 reward point for every $1 you spend to get 1% cash back
    Abyzz, American Marine, AquaIllumination, AutoAqua, CoralVue, Digital Aquatics, EcoTech Marine, Giesemann, GHL, Hanna Instruments, Hydor, IceCap, Innovative Marine, Iwaki, Kamoer, Kessil, Klir, Korallen-Zucht, Maxspect, Mur-lok, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, Radium, Red Sea, Reef Glass, Reef Octopus, Seneye, Somatic, Tunze, Vertex Aquaristik, and Waterbox Aquariums

You can also get bonus reward points by purchasing select items during special sales and promotions.

Learn More About Rewards

product
CV02962 Giesemann Professional Magnesium MG Test Kit https://www.marinedepot.com/giesemann-professional-magnesium-mg-test-kit //www.f3images.com/IMD/1000/CV02962/Giesemann-Professional-Magnesium-MG-Test-Kit-99.jpg Giesemann Aquaristic InStock 18.99 USD 0.0 0