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MAGNESIUM SUPPLEMENT - RED SEA FOUNDATION MAGNESIUM MG 500ML

16,99

The Red Sea Foundation Magnesium Mg 500ml is a highly concentrated liquid supplement designed to maintain optimal magnesium levels in your reef aquarium. Often overlooked, this essential element stabilizes calcium and KH, ensuring the health of your corals.

Features

  • Concentrated liquid solution
  • Part of Red Sea's Reef Care Program
  • High-purity magnesium salts
  • Precise and easy dosing
  • 500 ml format
  • Dosing pump compatible

Why Magnesium?

Magnesium maintains the balance between calcium and KH. Low magnesium (< 1250 ppm) causes calcium precipitation and general imbalance. SPS corals and calcareous algae particularly need it to build their skeletons.

L'Atelier's Tip

Maintain magnesium levels between 1280 and 1380 ppm. Test monthly (slow variation). If the value is low, increase gradually to avoid shocks. Compatible with other Foundation supplements (Ca+ and KH) for a complete reef program.

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They trust us

What our customers say

35 businesses and hundreds of individuals trust us.

4.9/5 on Google Reviews
  • A competent, attentive, and friendly team. A wide range of quality equipment, with a varied selection of live stock. A brick-and-mortar store that is good for the reefing community.

    Rsk91G Google review
  • A unique and exceptional place, the store is complete and well-organized. The staff is highly qualified in aquariums and very friendly. The variety of fish offered is incredible.

    Mathieu Quenard Google review
  • My reef tank has been immaculately maintained for 6 months. Each visit is followed by a detailed report. My aquarium has never looked so beautiful.

    Thomas R. Client interview
  • Excellent store with impeccable service.

    Customer name Google review
  • Specialty store with qualified and attentive staff. Wide selection of quality materials. Diversity in live species, possibility to order rare species.

    Jason Caillieret Google review
  • Everything is handled, the aquarium is always clean, thanks to the whole team. An impeccable rental service from start to finish. Our patients love it.

    Osteopathy Practice Client location
  • They designed a freshwater aquarium perfectly suited to our living room. The result is magnificent and the installation was completely stress-free.

    Sophie L. Custom Client
  • Best aquarium store in Île-de-France, hands down. The advice is sound, the equipment is quality and the prices are fair.

    Pierre D. Google review
  • The aquarium has become the centerpiece of our restaurant. Our customers love it and always talk about it. A real plus for our establishment.

    Le Marin Restaurant Client location
  • After years of struggling alone with my marine tank, I entrusted its maintenance to L'Atelier. The result: zero stress, corals in great shape. I recommend it.

    Laurent M. Client interview
Do you deliver to France?

Yes, we deliver everywhere in mainland France within 24 to 72 hours. Free delivery for purchases over €79.

Do you offer payment in installments?

Yes, you can pay in 3 interest-free installments via Alma for purchases of €150 or more, directly at checkout.

Can I pick up my order in-store?

Absolutely. Choose in-store pickup at checkout and we'll prepare your order within 2 hours.

How to order a custom aquarium?

Request a quote on the Custom-made page. An expert will get back to you within 48 hours with a layout plan and a quote.

Do you handle the maintenance of my aquarium?

Yes, starting from €149/month for regular maintenance (water, plants, equipment). More information on the Maintenance page.

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