Brightwell Magnesion Powder - 400g

$19.96 Sold out

Magnesium Supplement for All Marine Fish & Reef Aquaria


  • High-purity powdered magnesium blend.
  • 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 to form skeletal material.
  • Stronger and more economical than liquid magnesium solutions; created for hobbyists 
    maintaining multiple reef aquaria.
  • Formulated by a marine scientist.