Saltwater Additives

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

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  • Seachem Reef Carbonate 2L

    Seachem Reef Carbonate 2L

    Seachem Reef Carbonate 2L

    $21.00
    Sale price  $21.00 Regular price  $39.99
  • Seachem Reef Advantage Strontium 600g

    Seachem Reef Advantage Strontium 600g

    Seachem Reef Advantage Strontium 600g

    $10.54
    Sale price  $10.54 Regular price  $12.99
  • Seachem Reef Advantage Magnesium 1.2kg

    Seachem Reef Advantage Magnesium 1.2kg

    Seachem Reef Advantage Magnesium 1.2kg

    $14.46
    Sale price  $14.46 Regular price  $19.99
  • Seachem Reef Advantage Magnesium 4kg

    Seachem Reef Advantage Magnesium 4kg

    Seachem Reef Advantage Magnesium 4kg

    $47.25
    Sale price  $47.25 Regular price  $59.99
  • Seachem Reef Advantage Magnesium 300g

    Seachem Reef Advantage Magnesium 300g

    Seachem Reef Advantage Magnesium 300g

    $6.49
    Sale price  $6.49 Regular price  $8.99
  • Seachem Reef Advantage Magnesium 600g

    Seachem Reef Advantage Magnesium 600g

    Seachem Reef Advantage Magnesium 600g

    $10.54
    Sale price  $10.54 Regular price  $13.99
  • Seachem Cupramine 250mL

    Seachem Cupramine 250mL

    Seachem Cupramine 250mL

    $19.08
    Sale price  $19.08 Regular price  $30.00
  • Seachem Cupramine 500mL

    Seachem Cupramine 500mL

    Seachem Cupramine 500mL

    $36.63
    Sale price  $36.63 Regular price  $50.00
  • Seachem Cupramine 2L

    Seachem Cupramine 2L

    Seachem Cupramine 2L

    $133.85
    Sale price  $133.85 Regular price  $163.99
  • Seachem Reef Iodide 100mL

    Seachem Reef Iodide 100mL

    Seachem Reef Iodide 100mL

    $5.99
    Sale price  $5.99 Regular price 
  • Seachem Cupramine 50mL

    Seachem Cupramine 50mL

    Seachem Cupramine 50mL

    $6.99
    Sale price  $6.99 Regular price  $7.99
  • Seachem Reef Plus 4L

    Seachem Reef Plus 4L

    Seachem Reef Plus 4L

    $77.13
    Sale price  $77.13 Regular price 
  • Seachem Cupramine 100mL

    Seachem Cupramine 100mL

    Seachem Cupramine 100mL

    $9.56
    Sale price  $9.56 Regular price  $15.00
  • Seachem Reef Iodide 500mL

    Seachem Reef Iodide 500mL

    Seachem Reef Iodide 500mL

    $11.47
    Sale price  $11.47 Regular price  $18.95
  • Seachem Reef Iodide 250mL

    Seachem Reef Iodide 250mL

    Seachem Reef Iodide 250mL

    $7.49
    Sale price  $7.49 Regular price  $13.00
  • Seachem StressGuard 500mL

    Seachem StressGuard 500mL

    Seachem StressGuard 500mL

    $14.73
    Sale price  $14.73 Regular price  $19.00
  • Seachem Reef Plus 250mL

    Seachem Reef Plus 250mL

    Seachem Reef Plus 250mL

    $7.77
    Sale price  $7.77 Regular price  $9.99
  • Seachem Reef Plus 2L

    Seachem Reef Plus 2L

    Seachem Reef Plus 2L

    $42.59
    Sale price  $42.59 Regular price 
  • Seachem Reef Plus 500mL

    Seachem Reef Plus 500mL

    Seachem Reef Plus 500mL

    $11.92
    Sale price  $11.92 Regular price  $17.99
  • Seachem Prime 250mL

    Seachem Prime 250mL

    Seachem Prime 250mL

    $9.84
    Sale price  $9.84 Regular price  $16.99
  • Seachem Prime 50mL

    Seachem Prime 50mL

    Seachem Prime 50mL

    $4.99
    Sale price  $4.99 Regular price 
  • Seachem Prime Bonus Bottle 325mL

    Seachem Prime Bonus Bottle 325mL

    Seachem Prime Bonus Bottle 325mL

    $9.84
    Sale price  $9.84 Regular price  $16.99
  • Seachem Prime 100mL

    Seachem Prime 100mL

    Seachem Prime 100mL

    $5.99
    Sale price  $5.99 Regular price  $9.00
  • Seachem Prime 2L

    Seachem Prime 2L

    Seachem Prime 2L

    $58.61
    Sale price  $58.61 Regular price  $67.99