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Marine Aquarium Salt Mixes

Salt Mixes are fundamental for the success of saltwater aquariums. Marine salt is needed in a saltwater aquarium to simulate natural sea water, and it's a carbonate buffer that keeps your pH high and your fishes and invertebrates healthy. Reef salt is the same as marine salt but contains trace elements like calcium which are crucial to reef health. Don't rely on reef salt alone - always test trace levels as they are critically important and may be quickly depleted. Monitor specific gravity to keep your salt levels stable. Choose from our selection of quality salt mixes to prepare saltwater necessary for thriving marine fish-only, fish-only-with-live-rock (FOWLR) or coral reef aquariums

$7.99
heavy item shipping fee $3.00 applies

Instant Ocean Sea Salt Mix 25 Gallon Box

  • Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for quality, consistency, and value for more than 40 years.


$12.99
heavy item shipping fee $8.00 applies

Instant Ocean Sea Salt Mix 50 Gallon Bag

  • Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for quality, consistency, and value for more than 40 years.

$37.99
heavy item shipping fee $20.00 applies

Instant Ocean Sea Salt Mix 160 Gallon Bucket

  • Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for quality, consistency, and value for more than 40 years.

$43.99
heavy item shipping fee $23.00 applies

Instant Ocean Sea Salt Mix 200 Gallon Box

  • Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for quality, consistency, and value for more than 40 years.

$8.99
heavy item shipping fee $3.00 applies

Instant Ocean Reef Crystals Salt Mix 25 Gallon Box

  • Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water: - Extra Calcium to help ensure the growth of large and small polyp stony corals as well as coralline algae; - Extra Trace Elements to provide an additional measure of vital nutrients; - Extra Vitamins to ensure vigorous growth and survival of corals, anemones and other invertebrates in a captive environment; - Metal Detoxifier - to neutralize traces of heavy metal often present in domestic water supplies.
$14.99
heavy item shipping fee $5.00 applies

Instant Ocean Reef Crystals Salt Mix 50 Gallon Bag

  • Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water: - Extra Calcium to help ensure the growth of large and small polyp stony corals as well as coralline algae; - Extra Trace Elements to provide an additional measure of vital nutrients; - Extra Vitamins to ensure vigorous growth and survival of corals, anemones and other invertebrates in a captive environment; - Metal Detoxifier - to neutralize traces of heavy metal often present in domestic water supplies.
$44.99
heavy item shipping fee $20.00 applies

Instant Ocean Reef Crystals Salt Mix 160 Gallon Bucket

  • Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water: - Extra Calcium to help ensure the growth of large and small polyp stony corals as well as coralline algae; - Extra Trace Elements to provide an additional measure of vital nutrients; - Extra Vitamins to ensure vigorous growth and survival of corals, anemones and other invertebrates in a captive environment; - Metal Detoxifier - to neutralize traces of heavy metal often present in domestic water supplies.
$49.99
heavy item shipping fee $23.00 applies

Instant Ocean Reef Crystals Salt Mix 200 Gallon Box

  • Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water: - Extra Calcium to help ensure the growth of large and small polyp stony corals as well as coralline algae; - Extra Trace Elements to provide an additional measure of vital nutrients; - Extra Vitamins to ensure vigorous growth and survival of corals, anemones and other invertebrates in a captive environment; - Metal Detoxifier - to neutralize traces of heavy metal often present in domestic water supplies.
$17.99
heavy item shipping fee $7.00 applies

Red Sea Salt 55 Gallon Mix

  • Specially formulated for the use with reverse osmosis water, Red Sea's new salt formula is designed to meet the needs of today`s advanced hobbyist. Coral Pro Salt has been specifically formulated for use with "mineral free" Reverse Osmosis, or soft tap water and contains the elevated levels of calcium and buffer capacity that provide the extended availability of these elements, essential for vibrant coral growth. Utilizing the same natural sea minerals used in Red Sea Salt the new Coral Pro Salt will enable all reverse osmosis users and reef enthusiast a superior product with out the need for immediate supplementation.
$47.99
heavy item shipping fee $20.00 applies

Red Sea Salt 175 Gallon Bucket

  • Specially formulated for the use with reverse osmosis water
    Red Sea's new salt formula is designed to meet the needs of today`s advanced hobbyist. Coral Pro Salt has been specifically formulated for use with "mineral free" Reverse Osmosis, or soft tap water and contains the elevated levels of calcium and buffer capacity that provide the extended availability of these elements, essential for vibrant coral growth. Utilizing the same natural sea minerals used in Red Sea Salt the new Coral Pro Salt will enable all reverse osmosis users and reef enthusiast a superior product with out the need for immediate supplementation.

$39.99
heavy item shipping fee $19.00 applies

Coralife Sea Salt 150 Gallon Mix

  • Coralife Scientific Grade Marine Salt is formulated with ingredients of the highest quality with optimal levels of calcium and magnesium. Our Salt is unsurpassed in purity, quality and performance. It contains all essential major and trace elements to help the various forms of life found in marine tanks flourish.
    A High grade scientifically designed salt for the serious reef and fish aquarist. All important nutrients and elements are concentrated into our salt for a truly enriched seawater environment.
$14.99
heavy item shipping fee $8.00 applies

Coralife Sea Salt 50 Gallon Mix

  • Coralife Scientific Grade Marine Salt is formulated with ingredients of the highest quality with optimal levels of calcium and magnesium. Our Salt is unsurpassed in purity, quality and performance. It contains all essential major and trace elements to help the various forms of life found in marine tanks flourish.
    A High grade scientifically designed salt for the serious reef and fish aquarist. All important nutrients and elements are concentrated into our salt for a truly enriched seawater environment.
$37.99
heavy item shipping fee $19.00 applies

Oceanpure 200 Gallon Box

Oceanpure Synthetic Sea Salt 200 Gallon Box

  • Phosphate Free
  • Nitrate Free
  • Fast Dissolving
  • reef/marine environments
  • Contains all essential vital trace elements
$49.99
heavy item shipping fee $19.00 applies

Ocean Pure Pro Salt Mix

Oceanpure Pro Grade Marine REEF Salt 150 Gallon Bucket

  • Phosphate Free, Nitrate Free
  • Professional grade, enhanced with additional Calcium, magnesium, and strontium
  • Optimized for reef/marine environments
$49.99
heavy item shipping fee $19.00 applies

Tetra Marine Aquarium Salt

Tetra Marine Aquarium Pro Salt 160 Gallon Bucket

  • Phosphate Free
  • Nitrate Free
  • Fast Dissolving
  • Optimized for reef/marine environments
  • Enhanced with additional calcium, magnesium and strontium
$49.99
heavy item shipping fee $19.00 applies

Tetra Marine Aquarium Salt

Tetra Marine Aquarium Pro Salt 200 Gallon Box

  • Phosphate Free
  • Nitrate Free
  • Fast Dissolving
  • Optimized for reef/marine environments
  • Enhanced with additional calcium, magnesium and strontium
$64.99
heavy item shipping fee $19.00 applies

Tropic Marin Sea Salt 150 Gallon Bucket

Tropic Marin REEF Salt 200 Gallon Box

  • Tropic Marin sea salt is manufactured from pharmaceutically pure salts and is based upon the most recent scientific analysis of the tropical oceans. Tropic Marin Sea Salt contains all 70 trace elements in the natural concentrations of the ocean.It is free from synthetic additives and contains no nitrates, phosphates or silicates. Tropic Marin Sea Salt turns fresh water into salt water, which is practically indistinguishable from natural seawater.Tropic Marin Sea Salt is distinguished with having perfect solubility and maximum shelf life when compared with other salts.

$21.99
heavy item shipping fee $5.00 applies

Tropic Marin REEF Salt 50 Gallon Box

  • Tropic Marin sea salt is manufactured from pharmaceutically pure salts and is based upon the most recent scientific analysis of the tropical oceans. Tropic Marin Sea Salt contains all 70 trace elements in the natural concentrations of the ocean.It is free from synthetic additives and contains no nitrates, phosphates or silicates. Tropic Marin Sea Salt turns fresh water into salt water, which is practically indistinguishable from natural seawater.Tropic Marin Sea Salt is distinguished with having perfect solubility and maximum shelf life when compared with other salts.
$74.99
heavy item shipping fee $19.00 applies

Tropic Marin Pro Sea Salt 150 Gallon Bucket

Tropic Marin PRO REEF Salt 200 Gallon Bucket

  • Tropic Marin sea salt is manufactured from pharmaceutically pure salts and is based upon the most recent scientific analysis of the tropical oceans. Tropic Marin Sea Salt contains all 70 trace elements in the natural concentrations of the ocean.It is free from synthetic additives and contains no nitrates, phosphates or silicates. Tropic Marin Sea Salt turns fresh water into salt water, which is practically indistinguishable from natural seawater.Tropic Marin Sea Salt is distinguished with having perfect solubility and maximum shelf life when compared with other salts.