Additives

Water treatments, supplements, conditioners and accessories to keep your aquarium chemistry balanced and your fish, corals and plants thriving.

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  • Tropic Marin All For Reef Powder 1600g

    Tropic Marin All For Reef Powder 1600g

    Tropic Marin All For Reef Powder 1600g

    $59.99
    Sale price  $59.99 Regular price  $88.28
  • Tropic Marin Pro-Reef Salt 16 Gallon Can

    Tropic Marin Pro-Reef Salt 16 Gallon Can

    Tropic Marin Pro-Reef Salt 16 Gallon Can

    $18.99
    Sale price  $18.99 Regular price 
  • Brightwell Phosphat-E PRO 60mL

    Brightwell Phosphat-E PRO 60mL

    Brightwell Phosphat-E PRO 60mL

    $17.03
    Sale price  $17.03 Regular price  $17.99
  • Seachem StressGuard 250mL

    Seachem StressGuard 250mL

    Seachem StressGuard 250mL

    $9.56
    Sale price  $9.56 Regular price  $17.00
  • Seachem StressGuard 4L

    Seachem StressGuard 4L

    Seachem StressGuard 4L

    $95.66
    Sale price  $95.66 Regular price 
  • Seachem Flourish Excel 2L

    Seachem Flourish Excel 2L

    Seachem Flourish Excel 2L

    $40.62
    Sale price  $40.62 Regular price  $46.99
  • Seachem Prime 500mL

    Seachem Prime 500mL

    Seachem Prime 500mL

    $18.69
    Sale price  $18.69 Regular price  $24.99
  • Seachem Stability 500mL

    Seachem Stability 500mL

    Seachem Stability 500mL

    $17.04
    Sale price  $17.04 Regular price  $26.99
  • Hikari Bio-Bandage Lite 16oz

    Hikari Bio-Bandage Lite 16oz

    Hikari Bio-Bandage Lite 16oz

    $11.79
    Sale price  $11.79 Regular price 
  • Fritz Mardel Maracyn 2 - 400g Bulk Jar

    Fritz Mardel Maracyn 2 - 400g Bulk Jar

    Fritz Mardel Maracyn 2 - 400g Bulk Jar

    $175.99
    Sale price  $175.99 Regular price 
  • API Aquarium Salt 33oz

    API Aquarium Salt 33oz

    API Aquarium Salt 33oz

    $8.78
    Sale price  $8.78 Regular price  $15.00
  • Tropic Marin Pro-Reef Salt 80 Gallon Bucket

    Tropic Marin Pro-Reef Salt 80 Gallon Bucket

    Tropic Marin Pro-Reef Salt 80 Gallon Bucket

    $56.99
    Sale price  $56.99 Regular price 
  • Tropic Marin Classic Sea Salt 80 Gallon Bucket

    Tropic Marin Classic Sea Salt 80 Gallon Bucket

    Tropic Marin Classic Sea Salt 80 Gallon Bucket

    $53.99
    Sale price  $53.99 Regular price 
  • Brightwell Phosphat-E PRO 30mL

    Brightwell Phosphat-E PRO 30mL

    Brightwell Phosphat-E PRO 30mL

    $11.70
    Sale price  $11.70 Regular price  $12.99
  • Tropical Science Spawn Aid 1 Gallon

    Tropical Science Spawn Aid 1 Gallon

    Tropical Science Spawn Aid 1 Gallon

    $89.99
    Sale price  $89.99 Regular price 
  • Tropical Science Spawn Aid 64oz

    Tropical Science Spawn Aid 64oz

    Tropical Science Spawn Aid 64oz

    $59.99
    Sale price  $59.99 Regular price 
  • Tropical Science Spawn Aid 16oz

    Tropical Science Spawn Aid 16oz

    Tropical Science Spawn Aid 16oz

    $19.99
    Sale price  $19.99 Regular price  $24.99
  • Seachem Flourish Trace 4L

    Seachem Flourish Trace 4L

    Seachem Flourish Trace 4L

    $75.01
    Sale price  $75.01 Regular price  $81.83
  • Seachem Pristine 250mL

    Seachem Pristine 250mL

    Seachem Pristine 250mL

    $10.36
    Sale price  $10.36 Regular price  $14.99
  • Seachem Flourish Advance 4L

    Seachem Flourish Advance 4L

    Seachem Flourish Advance 4L

    $89.99
    Sale price  $89.99 Regular price  $99.99
  • Ruby Reef HydroPlex 32oz

    Ruby Reef HydroPlex 32oz

    Ruby Reef HydroPlex 32oz

    $28.99
    Sale price  $28.99 Regular price 
  • ESV Kalkwasser Powder (Calcium Hydroxide) 22 lbs

    ESV Kalkwasser Powder (Calcium Hydroxide) 22 lbs

    ESV Kalkwasser Powder (Calcium Hydroxide) 22 lbs

    $144.92
    Sale price  $144.92 Regular price  $149.99
  • Brightwell Potassion-P 300g

    Brightwell Potassion-P 300g

    Brightwell Potassion-P 300g

    $18.85
    Sale price  $18.85 Regular price  $21.99
  • ZooMed Betta Starter Kit

    ZooMed Betta Starter Kit

    ZooMed Betta Starter Kit

    $9.99
    Sale price  $9.99 Regular price