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  • £13.99

    Seachem Reef Advantage Calcium – 250g

    £13.99

    Seachem Reef Advantage Calcium is a non-caustic (pH 8.3–8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth.

  • £17.39

    Seachem Reef Advantage Calcium – 500g

    £17.39

    Seachem Reef Advantage Calcium is a non-caustic (pH 8.3–8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth.

  • £8.99

    Seachem Reef Advantage Strontium – 300g

    £8.99

    Seachem Reef Advantage Strontium restores and maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the same manner as calcium and holds a similar importance in maintaining a vigorous level of growth.

  • £13.59

    Seachem Reef Advantage Strontium – 600g

    £13.59

    Seachem Reef Advantage Strontium restores and maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the same manner as calcium and holds a similar importance in maintaining a vigorous level of growth.

  • £12.69

    Seachem Reef Buffer – 250g

    £12.69

    Seachem Reef Buffer is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult; however it will also raise carbonate alkalinity. When pH is not an issue, Reef Builder or Reef Carbonate should be your first choice for a carbonate alkalinity supplement.

  • £21.24

    Seachem Reef Buffer – 500g

    £21.24

    Seachem Reef Buffer is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult; however it will also raise carbonate alkalinity. When pH is not an issue, Reef Builder or Reef Carbonate should be your first choice for a carbonate alkalinity supplement.

  • £5.64

    Seachem Reef Buffer – 50g

    £5.64

    Seachem Reef Buffer is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult; however it will also raise carbonate alkalinity. When pH is not an issue, Reef Builder or Reef Carbonate should be your first choice for a carbonate alkalinity supplement.

  • £13.59

    Seachem Reef Builder – 300g

    £13.59

    Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3.

  • £18.19

    Seachem Reef Builder – 600g

    £18.19

    Seachem Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3.