ADDITIVES (489)
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  • Boyd's Chemi Pure Blue Nano - Single Pack
    $2.87
    No reviews

    THE BENEFITS OF USING CHEMI-PURE BLUE: Superior filtration for Reef, Marine, Jellyfish, & High pH Freshwater Aquariums Now featuring QuickWash...

  • ATI ICP Element Potassium - 1000 mL
    $26.95
    No reviews

    ATI ICP Element Potassium - 1000 mL ATI ICP Element Potassium is a high-purity solution used to restore potassium levels...

  • ATI ICP Element Nickel - 150 mL
    $16.95
    No reviews

    ATI ICP Element Nickel - 150 mL ATI ICP Element Nickel is a high-purity solution for supplementing trace levels of...

  • ATI ICP Element Chromium - 150 mL
    $16.95
    No reviews

    ATI ICP Element Chromium - 150 mL TI ICP Element Chromium is a high-purity trace element solution used to restore...

  • Fauna Marin AEFW M - 1000ml
    $103.94
    No reviews

    Fauna Marin AEFW M, 1000ml Fauna Marin AEFW M will boost Acropora corals' natural defenses and vitality with this specialized...

  • Fauna Marin Coral Wow - 1000ml
    $51.96

    OUT OF STOCK

    No reviews

    Fauna Marin Coral Wow, 1000ml Fauna Marin Coral Wow reveals vibrant colors in SPS corals, naturally manages nutrients, and boosts...

  • Brightwell Aquatics Vitamarin-C - Vitamin-C Supplement
    $24.85
    No reviews

    Overview Highly-concentrated vitamin-C solution. Buffered; will not impact pH when used as directed. Stronger than competing products. Vitamin-C is associated...

  • Brightwell Aquatics Koralle-VM - Vitamin & Mineral Supplemen
    $18.24
    No reviews

    Overview: Unique vitamin and minor and trace element complex for establishing and replacing substances important to marine invertebrates, including corals,...

  • Two Little Fishies Iodine Concentrate 250 mL (8.4 fl oz)
    $7.73
    No reviews

    Iodine Concentrate Julian Sprung's Reef Formula Iodide and iodine supplement made from potassium iodide and seaweed extracts. Use this supplement...

  • PolypLab Reef Primer 45g Coral Dip
    $16.99
    No reviews

    Help prevent Zoanthid Eating Nudibranchs, Montipora Eating Nudibranchs, Acropora Eating Flatworms, Bristleworms, Zoanthid Eating Spiders Red Flatworms, Filamentous Hair Algae,...

  • Seachem Cupramine 50 ML
    $6.08
    No reviews

    Cupramine™ effectively eradicates ectoparasite of both freshwater and marine fish. It has all the advantages of copper sulfate and chelated...

  • Seachem Flourish Potassium 500 mL / 17 fl. oz.
    $11.83
    No reviews

    Flourish Potassium"contains 50,000 mg/L of potassium suitable for the natural planted aquarium. Potassium is one of several elements that are...

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $90.40
    No reviews

    Overview • Unique complex that replaces trace and minorelements used by fishes, corals, and other invertebrates, and which are lost...

  • Brightwell Aquatics Boost pH+ 2L
    $49.23

    OUT OF STOCK

    No reviews

    Boost pH+ High Range pH Increaser deals with excess CO2, raises pH only without increasing alkalinity or calcium (in tanks...

  • Red Sea Reef Foundation C (Mg) - 5 Liter Jug
    $119.99
    No reviews

    MAGNESIUM FOUNDATION C Magnesium supplement for balanced formation of coral skeleton Mg Calcium, magnesium, strontium and carbonate are the basic...

  • ME Coral 32 OZ Alkalinity Liquid
    $9.99 $14.99
    No reviews

    MECoral 32 oz Kh liquid solution is ready to use.  MECoral uses only Pharmaceutical Grade raw material to achieve the...

  • Two Little Fishes Magnesium Concentrate 500 mL (16.8 fl oz)
    $10.09
    No reviews

    Two Little Fishies Magnesium Concentrate is a solution that contains the element magnesium, an essential pH-stabilizing component of the seawater...

  • Seachem Reef Adv. Calcium 250 g / 8.8 oz
    $9.17
    No reviews

    Reef Advantage Calcium" is a non-caustic (pH 8.3—8.6) optimized blend of ionic calcium designed to restore and maintain calcium to...

  • Brightwell Aquatics Calcion-P - Dry Calcium Supplement for R
    $32.40
    No reviews

    Overview High-purity powdered calcium. Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates...

  • Brightwell ChaetoGro - 2 L / 67.6 fl. oz.
    $54.30
    No reviews

    ChaetoGro Complete phosphate and nitrate free multi-nutrient with iron, cobalt and molybdenum for chaetomorpha growth and vigor in all marine...

  • Hydrospace PNS Probio - 1 Gallon
    $185.99
    No reviews

    PNS ProBio The Natural Live Aquarium Food that Cleans Up After Itself: Provide superior nutrition, while controlling nutrients and organic...

  • Nyos Ion-B Ca/Mg+ Liquid 2000ml
    $19.99
    No reviews

    Ion-B Ca/Mg+  NYOS Ion-B Ca/Mg+ Liquid delivers reliable calcium and magnesium supplementation. Promotes sustained coral calcification and structural density in...

  • Nyos Ion-B ALK/pH+ Liquid 2000ml
    $19.99
    No reviews

    Ion-B ALK/pH+ NYOS Ion-B ALK/pH+ Liquidl is a bulk-size alkalinity stabilizer for professional reef systems. Ensures steady pH and KH...

  • Nyos Ion Elements 1 Ca/Mg 250ml
    $19.99
    No reviews

    Ion Elements 1 Ca/Mg A balanced elemental additive supplying calcium and magnesium in precise ionic ratios. NYOS Ion Elements 1...

  • Nyos Ion Elements 2 Ca/Mg 250ml
    $19.99
    No reviews

    Ion Elements 2 Ca/Mg NYOS Ion Elements 2 Ca/Mg delivers secondary trace minerals complementing the primary Ca/Mg series. It enhances...

  • Nyos Ion Elements 3 ALK/pH 250ml
    $19.99
    No reviews

    Ion Elements 3 ALK/pH NYOS Ion Elements 3 ALK/pH  stabilizes alkalinity and pH in reef systems, preventing daily swings that...

  • Nyos Amyno 250ml
    $23.99
    No reviews

    AMYNO Developed with coral farms to deliver a balanced blend of amino acids, vitamins, and organic micronutrients for boosted growth...

  • DrTim's Reef Waste-Away (240ml - Treats 240 gal)
    $21.59
    No reviews

    Natural Aquarium Cleaner Use DrTim’s Waste-Away Sludge Busting Bacteria to Remove Hidden Wastes Waste-Away is sludge busting bacteria!   Dissolves...

  • DrTim's Reef One & Only (480ml - Treats 240 gal)
    $122.59
    No reviews

    Treat Aquarium Nitrite & Ammonia Levels Use DrTim’s One & Only Live Nitrifying Bacteria to Eliminate New Tank Syndrome One...

  • DrTim's Saltwater One & Only (240ml - Treats 120 gal)
    $66.29
    No reviews

    Treat Aquarium Nitrite & Ammonia Levels Use DrTim’s One & Only Live Nitrifying Bacteria to Eliminate New Tank Syndrome One...

  • ATI ICP Element Boron - 2700 mL
    $26.95
    No reviews

    ATI ICP Element Boron - 2700 mL ATI ICP Element Barium is a high-purity solution developed to replenish barium in...

  • ATI Essentials Mixed Reef #2 - 2.7 Liter
    $29.95
    No reviews

    ATI Essentials Mixed Reef #2 - 2.7 Liter Part Two (Calcium Complex) only of the ATI Essentials Mixed Reef two-part...

  • ATI Essentials Mixed Reef #1 - 2.7 Liter
    $34.95
    No reviews

    ATI Essentials Mixed Reef #1 - 2.7 Liter Part One (Alkalinity Complex) only of the ATI Essentials Mixed Reef two-part...

  • PolypLab Colors Amino acids Formula color enhancer 200%
    $54.99
    No reviews

    Polyplab Colors is ulta pure Amino Acids engineered for the most demanding growers. It is designed for: - Ultra Low...

  • PolypLab Acids 50ml
    $18.00 $29.00
    No reviews

    III. RF-Acids Concentrated fusion of select amino acids The role of amino acids becomes critical in a low nutrient environment....

  • Fauna Marin Balling Trace 3 Health 250 ml
    $18.47
    No reviews

    Achieve a Metallic Health Fluorescent Effect with Trace 3 Balling Light Solution Adding Trace 3 - Metallic Health Fluorescent Effect...

  • Triton Boron 1000ml
    $16.00 $32.00
    No reviews

    Boron macro element seawater supplement. Boron is an important element that naturally occurs in seawater. Stabilizes pH, beneficial for SPS/LPS...

  • Triton Potassium 1000g
    $38.00
    No reviews

      Potassium macro element seawater supplement. Potassium is an important element that naturally occurs in seawater. Beneficial for SPS coral...

  • ATI Nutrition P - 500 mL
    $29.95
    No reviews

    ATI Nutrition P delivers a high-quality phosphate and phosphorus source designed to balance phosphate (PO4) and nitrate (NO3) nutrient levels...

  • ME Coral Nitrate 16 oz
    $13.99

    OUT OF STOCK

    No reviews

    ME Nitrate (NO3) is designed to raise nitrates in Low Nutrient systems.  Some systems can become Nitrate (NO3) depleted which...

  • Seachem Replenish - 250 mL / 8.5 fl. oz.
    $3.17
    No reviews

    Replenish Product Description Replenish is a proprietary blend of salts designed to replenish physiologically relevant minerals that are removed by...

  • Brightwell Aquatics Frag Recover 250 ml
    $11.18
    No reviews

    Frag Recover All-natural coral frag dip for recovery of live coral frags and regeneration of cut coral tissue Overview All-Natural,...

  • ME Coral Wash Off Coral Dip 4X 2 oz
    $14.99
    No reviews

    Wash Off is a powerful Coral Cleaner for newly acquired corals such as Sps, Lps, Chalice, Zoas, Montipora, Mushrooms and...

  • Brightwell Aquatics Potassion - Concentrated Potassium Solution - 2 Liter
    $52.32
    No reviews

    Overview • Highly-concentrated ionic potassium solution. • Provides potassium, an important component of aragonite (the mineral secreted as skeletal material...

  • Brightwell Aquatics KoralColor - Encourages Increased Colora
    $32.79
    No reviews

    Overview • Provides numerous elements important to the formation of various biochromes (biological pigments), complex molecules that give coloration to...

  • Fauna Marin ELEMENTALS Mg - Magnesium 1000 ml
    $28.86
    No reviews

    Highly Concentrated Magnesium Fauna Marin Elementals Mg is a highly concentrated magnesium solution for compensating magnesium deficiencies in reef aquariums....

  • Red Sea Reef Foundation A (Ca/Sr) - 5 Liter Jug
    $119.99
    No reviews

    CALCIUM+ SUPPLEMENT FOUNDATION A Calcium and strontium complex for balanced formation of the coral skeleton Ca | Sr | Ba...

  • Red Sea Reef Foundation A (Ca/Sr) - 500ml Liquid
    $21.99
    No reviews

    Reef Foundation A Calcium and strontium complex for balanced formation of the coral skeleton Ca | Sr   Calcium, magnesium,...

  • Two Little Fishies Kalkwasser 1 LB
    $17.47
    No reviews

    Calcium Supplement Mix. Our pure source of Calcium Hydroxide makes the ideal solution for replenishing calcium and maintaining alkalinity, for...

  • 1317, Reef Buffer 1KG
    $23.62
    No reviews

    Reef Buffer is intended primarily for use in a reef system where the maintenance of a pH of 8.3 is...

  • Seachem Reef Advantage Calcium 1 Kg.
    $27.26
    No reviews

    Reef Advantage™is equivalent to dry Reef Complete™.It is a buffered (pH 8.3–8.6) optimized blend of ionic calcium, magnesium, strontium, sodium,...