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At BulkReefSupply.com, we carry our own BRS line of aquarium supplements to meet your saltwater aquarium and reefing needs. Maintain proper water parameters with our high quality bulk Calcium Chloride, Magnesium Chloride and alkalinity supplements such as Soda Ash and Sodium Bicarbonate. Create an easy maintenance system by using our 2 Part Calcium & Alkalinity Total Packages with 2 Part Dosers. Explore the benefits of Kalkwasser or our Kalkwasser Starter Kit which can make reef aquarium maintenance easier. By adding supplements in your tank, you are helping your coral grow and flourish in your underwater reef. Or try a variety of 2 Part Calcium & Alkalinity products from ESV, Red Sea, Brightwell, Two Little Fishies or Fauna Marin 2 Part Balling Salts.

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437 Items

  1. 2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned with Dosers
    Bulk Reef Supply
    2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned with Dosers
    $207.99

    $259.99
    Add to Cart
  2. 2-Part Pharma Calcium & Alkalinity Bulk Total Package with Dosers
    Bulk Reef Supply
    2-Part Pharma Calcium & Alkalinity Bulk Total Package with Dosers
    $215.99

    $269.99
    Add to Cart
  3. ESV B-Ionic Magnesium
    ESV Aquarium Products Inc.
    ESV B-Ionic Magnesium

    Starting at: $16.99

  4. MicroBacter Start XLM
    Brightwell Aquatics
    MicroBacter Start XLM

    Starting at: $12.29