Brightwell Hydrat-Mg 250ml

$7.95 Sold out

Solution of Hydrated Magnesium Salts for Use in Reef and Marine Aquaria


  • Safely increases magnesium concentration in all marine and reef aquaria.
  • Utilizes specific magnesium salts to obtain the desired results.
  • May be used to attain and maintain a magnesium concentration in excess of 1,500 
    ppm as desired by aquarist.
  • Maintaining an elevated magnesium concentration, relative to the average natural 
    seawater concentration, for a prolonged period of time may be of benefit to reef 
    aquaria in certain situations, and should be attempted by experienced aquarists only.
  • 75,000 ppm magnesium