ADDITIVES (454)
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  • Fauna Marin Balling Salts Mg 4 kg
    $54.99
    No reviews

    Salt Magnesium Mix for Balling Light Systems in Reef Tanks With Fauna Marin Balling-Light salts, you get the purest specialty...

  • Fauna Marin Ready to Reef 1000 ml
    $43.99
    No reviews

    Everything You Need in One Bottle Fauna Marin Ready2Reef is a highly concentrated solution that provides a reef tank with...

  • API EM Erythromycin Medication - 10ct Powder Packets
    $17.49
    No reviews

    For broad spectrum treatment and control of bacterial disease, such as body slime, mouth fungus, Furunculosis (open lesions and swelling),...

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $85.28
    No reviews

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

  • Brightwell Aquatics Iodion - Liquid Iodine Supplement - Long
    $10.10
    No reviews

    Overview: Highly-concentrated, extended activity iodide solution. Provides iodide, which is important to hermatypic corals and other invertebrates harboring zooxanthellae, macroalgae,...

  • Brightwell Aquatics Boost pH+ 2L
    $46.44
    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 B (Alk) - 5 Liter Jug
    $119.99
    No reviews

    KH/ALKALINITY FOUNDATION B Carbonate & buffer complex for balanced formation of Coral Skeleton KH Calcium, magnesium, strontium and carbonate are...

  • 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...

  • ESV B-IONIC CALCIUM BUFFER 32 OZ (2x16oz)
    $24.99
    No reviews

    B-Ionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system, which does not contain any organic...

  • Red Sea Reef Foundation A (Ca/Sr) - 1kg Dry
    $33.99
    No reviews

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

  • Seachem Reef Advangtage **Magnesium 1.2 KG**
    $14.46
    No reviews

    Reef Advantage Magnesium" is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted...

  • Seachem Reef Builder 600 g / 1.3 lbs
    $13.01
    No reviews

    Reef Builder" raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to...

  • 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 Kalk+2 - Advanced Kalkwasser Supplement 450g
    $24.26
    No reviews

    Overview Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness...

  • Brightwell Aquatics Calcion - Liquid Calcium Supplement for
    $10.15
    No reviews

    Overview: Highly-concentrated ionic calcium solution. Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building...

  • Brightwell Aquatics Alkalin8.3 - Liquid pH Buffer & Alkalinity 250ml
    $8.72
    No reviews

    Overview: Highly-effective alkalinity(KH)-increasing ("buffer") solution. Helps increase pH stability in an aquarium by raising the alkalinity. Provides a source of...

  • Fauna Marin RED X 250 ml
    $32.99
    No reviews

    Prevent Unsightly Cyanobacteria Growth in Reef Aquariums Fauna Marin RED X organically prevents algae growth in reef aquariums. It is...

  • Fauna Marin ReBiotic 100% Natural 125 g
    $79.19
    No reviews

    Restore Bacterial Stability in Saltwater Aquariums Fauna Marin Rebiotic 100% Natural is a unique freeze-fried bacteria mix used for restoring...

  • Fauna Marin Bacto Reef Therapy 500 ml
    $43.99
    No reviews

    The Perfect Mix of Halophilic and Probiotic Bacteria Cultures for Reef Aquariums Fauna Marin Bacto Therapy is a super-efficient, concentrated...

  • Fauna Marin Bacto Reef Blend 250 ml
    $28.59
    No reviews

    Bacteria System for Marine Aquariums Fauna Marin Bacto Blend is a unique composition of halophilic and phototrophic bacteria cultures that...

  • Brightwell Aquatics Razor Marine, Systemic Cleaner, coral safe 500ml
    $22.07
    No reviews

    Razor Marine Unique Marine Systemic System Cleaner designed to target and clean surfaces of live rock, coral decorations and tank...

  • Brightwell Aquatics Razor Marine, Systemic Cleaner, coral safe 250ml
    $12.30
    No reviews

    Razor Marine Unique Marine Systemic System Cleaner designed to target and clean surfaces of live rock, coral decorations and tank...

  • Brightwell MicroBacterSTARTXLM - Professional 15X Strong Nitrifying Tank Starter Bacteria Culture - 500 ml /17 fl. oz.
    $48.60
    No reviews

    Professional 15x strength powerful live tank starter nitrifying bioculture, with much fewer temperature and shelf life restrictions than competing products,...

  • Seachem Prime- 1 L / 33.8fl. oz
    $35.49
    No reviews

    Prime     Complete and concentrated conditioner for both fresh and saltwater     Removes chlorine, chloramine     Detoxifies ammonia, nitrite, and...

  • Prodibio BioDigest 30 pack
    $51.98

    OUT OF STOCK

    No reviews

    Kick-Start Your Aquarium's Natural Filter with BioDigest   Contains Bacteria to Help with Biological Filtration Available in 6, 10, 12,...

  • Brightwell Aquatics SpongExcel - Silica solution for improve
    $15.16
    No reviews

    Ionic silica solution for enhancing growth rates of sponges and gastropods.

  • Fauna Marin Coral Wow - 1000ml
    $49.49
    No reviews

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

  • Fauna Marin Coral Wow - 250ml
    $14.26
    No reviews

    Fauna Marin Coral Wow, 250ml Fauna Marin Coral Wow reveals vibrant colors in SPS corals, naturally manages nutrients, and boosts...

  • Fauna Marin AEFW X 500 ml- EXP 6/25
    $21.99 $54.99
    No reviews

    SAVE 60%- STILL GOOD TO USE- EXPIRE 6/25   Fauna Marin AEFW X is a pest control solution that works...

  • Brightwell Aquatics Liquid Reef - 500ml
    $24.79
    No reviews

    Concentrated Reef Builder for Coralline Algae, Corals, Clams & other Marine Invertebrates Overview Complete source of the elements and molecules...

  • Brightwell Aquatics Liquid Reef - 250ml
    $15.50
    No reviews

    Concentrated Reef Builder for Coralline Algae, Corals, Clams & other Marine Invertebrates Overview Complete source of the elements and molecules...

  • Brightwell Aquatics Hydrat-Mg - 500ml
    $11.16
    No reviews

    Solution of Hydrated Magnesium Salts for Use in Reef and Marine Aquaria Overview Safely increases magnesium concentration in all marine...

  • Brightwell Aquatics Hydrat-Mg - 250ml
    $7.28
    No reviews

    Solution of Hydrated Magnesium Salts for Use in Reef and Marine Aquaria Overview Safely increases magnesium concentration in all marine...

  • Ultralife Liquid Phosphate Remover Treats 1850 gallons
    $18.95
    No reviews

    Liquid Phosphate Remover & Control Ultralife Liquid Phosphate Remover & Control safely and effectively removes phosphate (P04) from your aquarium....

  • ME Coral Nitrate 1 Gal
    $59.99

    OUT OF STOCK

    No reviews

    ME Nitrates Regular Formula   ME Nitrate (NO3) is designed to raise nitrates in Low Nutrient systems.  Some systems can become...

  • Seachem Vitality 250 mL / 8.5 fl oz
    $13.61
    No reviews

    Vitality Vitamin and amino acid supplement Enhanced with Vitamin C for marine fish Helps prevent diseases due to deficiency like...

  • Seachem Vitality 4L
    $104.32
    No reviews

    Vitality is a comprehensive vitamin, amino acid, and trace element supplement developed to address nutritional requirements commonly associated with long...

  • Fauna Marin Amin 500 ml
    $65.99
    No reviews

    Accelerate Coral Growth and Improve Color Pigmentation  Fauna Marin Amin is an amino acid product that accelerates coral growth and...

  • Fauna Marin Amin 250 ml
    $43.99
    No reviews

    Accelerate Coral Growth and Improve Color Pigmentation  Fauna Marin Amin is an amino acid product that accelerates coral growth and...

  • 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...

  • ME Coral Polyp Extender Amino 32 oz
    $33.99
    No reviews

    ME Amino is made primarily of a strong dose of Aspartic acid and Glutumic acid.   These are the main aminos...

  • ME Coral Polyp Extender Amino 16 oz
    $23.99
    No reviews

    ME Amino is made primarily of a strong dose of Aspartic acid and Glutumic acid.   These are the main aminos...

  • Seachem Reef Zooplankton - 500 mL / 17 fl. oz.
    $16.48
    No reviews

    Reef Zooplankton™ is a concentrated blend of marine zooplankton designed to provide the essential fatty acids, proteins, vitamins, amino acids,...

  • 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....

  • Triton Sulphate Dry 1000G
    $21.00 $42.00
    No reviews

    Sulphate macro element seawater supplement. Sulphate is an important element that naturally occurs in seawater. Beneficial for SPS/LPS coral colour...

  • Fauna Marin Balling Trace 3 Health 250 ml
    $17.59
    No reviews

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

  • Fauna Marin Balling Trace 2 Metabolic 250 ml
    $17.59
    No reviews

    Achieve a Metallic Metabolic Color Effect with Trace 2 Balling Light Solution Adding Trace 2 - Metallic Metabolic Color Effect...

  • Fauna Marin Balling Trace 1 Color & Grow 250 ml
    $17.59
    No reviews

    Achieve Amazing Color and Growth with Trace 1 Balling Light Solution Adding Trace 1 - Color and Growth solution to...

  • Fauna Marin ELEMENTALS TRACE Mo - Molybdenum 250ml
    $27.49
    No reviews

    Highly Concentrated Molybdenum Fauna Marin Elementals Trace Mo is a high purity Molybdenum solution for compensating Molybdenum deficiencies in reef...

  • Fauna Marin ELEMENTALS B - Boron 1000 ml
    $27.49
    No reviews

    Highly Concentrated Boron Fauna Marin Elementals B is a highly concentrated Boron solution for compensating Boron deficiencies in reef aquariums. ...

  • PaxBellum Nitrate & Molybdenum Supplements 250ml 5% Solution
    $6.99 $18.00
    No reviews

    Nitrogen + Molybdenum solution to maintain optimal N:P ratio in your aquarium. Dose as needed to maintain NO3:PO4 ratio between...