Saltwater Additives

Trace elements, buffers and supplements designed to keep saltwater and reef tanks in balance.

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  • Seachem Reef Complete 250mL

    Seachem Reef Complete 250mL

    Seachem Reef Complete 250mL

    $7.52
    Sale price  $7.52 Regular price  $10.31
  • Seachem Marine Buffer 250g

    Seachem Marine Buffer 250g

    Seachem Marine Buffer 250g

    $7.63
    Sale price  $7.63 Regular price  $12.99
  • Seachem Reef Complete 4L

    Seachem Reef Complete 4L

    Seachem Reef Complete 4L

    $74.97
    Sale price  $74.97 Regular price 
  • Seachem Reef Complete 500mL

    Seachem Reef Complete 500mL

    Seachem Reef Complete 500mL

    $11.55
    Sale price  $11.55 Regular price  $20.70
  • Seachem Reef Advantage Calcium 250g

    Seachem Reef Advantage Calcium 250g

    Seachem Reef Advantage Calcium 250g

    $9.17
    Sale price  $9.17 Regular price  $11.99
  • Seachem Reef Advantage Calcium 4kg

    Seachem Reef Advantage Calcium 4kg

    Seachem Reef Advantage Calcium 4kg

    $98.64
    Sale price  $98.64 Regular price 
  • Seachem Reef Advantage Calcium 1kg

    Seachem Reef Advantage Calcium 1kg

    Seachem Reef Advantage Calcium 1kg

    $27.26
    Sale price  $27.26 Regular price  $33.99
  • Seachem Reef Advantage Calcium 500g

    Seachem Reef Advantage Calcium 500g

    Seachem Reef Advantage Calcium 500g

    $15.78
    Sale price  $15.78 Regular price  $22.99
  • Seachem Garlic Guard 500mL

    Seachem Garlic Guard 500mL

    Seachem Garlic Guard 500mL

    $11.55
    Sale price  $11.55 Regular price  $17.99
  • Seachem Garlic Guard 250mL

    Seachem Garlic Guard 250mL

    Seachem Garlic Guard 250mL

    $7.52
    Sale price  $7.52 Regular price  $13.99
  • Seachem Garlic Guard 4L

    Seachem Garlic Guard 4L

    Seachem Garlic Guard 4L

    $71.42
    Sale price  $71.42 Regular price 
  • Seachem Garlic Guard 2L

    Seachem Garlic Guard 2L

    Seachem Garlic Guard 2L

    $41.41
    Sale price  $41.41 Regular price  $46.11
  • Seachem Garlic Guard 100mL

    Seachem Garlic Guard 100mL

    Seachem Garlic Guard 100mL

    $4.99
    Sale price  $4.99 Regular price  $9.99
  • Seachem Clarity 250mL

    Seachem Clarity 250mL

    Seachem Clarity 250mL

    $8.99
    Sale price  $8.99 Regular price  $17.00
  • Seachem Clarity 4L

    Seachem Clarity 4L

    Seachem Clarity 4L

    $86.67
    Sale price  $86.67 Regular price  $99.99
  • Seachem Reef Potassium 500mL

    Seachem Reef Potassium 500mL

    Seachem Reef Potassium 500mL

    $12.99
    Sale price  $12.99 Regular price  $14.99
  • Seachem Clarity 100mL

    Seachem Clarity 100mL

    Seachem Clarity 100mL

    $5.99
    Sale price  $5.99 Regular price  $10.99
  • Seachem Clarity 500mL

    Seachem Clarity 500mL

    Seachem Clarity 500mL

    $17.04
    Sale price  $17.04 Regular price  $20.99
  • Seachem Stability 4L

    Seachem Stability 4L

    Seachem Stability 4L

    $86.67
    Sale price  $86.67 Regular price  $105.99
  • Seachem Reef Pack: NPK

    Seachem Reef Pack: NPK

    Seachem Reef Pack: NPK

    $18.99
    Sale price  $18.99 Regular price  $19.99
  • Seachem Reef Phosphorus 500mL

    Seachem Reef Phosphorus 500mL

    Seachem Reef Phosphorus 500mL

    $12.99
    Sale price  $12.99 Regular price  $14.99
  • Seachem Reef Nitrogen 500mL

    Seachem Reef Nitrogen 500mL

    Seachem Reef Nitrogen 500mL

    $12.99
    Sale price  $12.99 Regular price  $14.99
  • Seachem Reef Nitrogen 250mL

    Seachem Reef Nitrogen 250mL

    Seachem Reef Nitrogen 250mL

    $9.99
    Sale price  $9.99 Regular price  $15.00
  • Seachem Stability 2L

    Seachem Stability 2L

    Seachem Stability 2L

    $54.11
    Sale price  $54.11 Regular price  $69.99