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Brightwell Hydrat-MG Magnesium 500 ml

$9.19 
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  • 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