Brightwell Magnesion 20L

$152.96 Sold out

Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria


  • Highly-concentrated ionic magnesium solution.
  • Provides magnesium, which helps regulate the balance between calcium and 
    carbonates in aquarium water, and is a component of aragonite, the mineral 
    secreted by reef-building organisms such as corals, clams, and their allies to 
    form skeletal material.
  • Stronger than most competing products.
  • Contains no unwanted organic material such as EDTA, gluconate, or polygluconate.
  • Formulated by a marine scientist.