ADDITIVES (439)
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  • ATI Elements - Potassium 1000ml
    $22.95
    No reviews

    ATI Elements ATI Elements give you complete control to fine tune the amounts of trace minerals your aquarium needs. With...

  • 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...

  • SEA LAB FORMULA #28 - APPROX 50 PCS (NUGGET)
    $7.19 $8.99
    No reviews

    Jar of nuggets, approx 50 nuggets Sea-Lab Formula 28 is a mixture of naturally occurring buffer compounds that maintains natural...

  • Red Sea 4-Part Complete Reef Care - Large Pack (160 gal)
    $189.99

    OUT OF STOCK

    No reviews

    Complete 4-part Supplement Program Optimal coral growth & coloration in non-refugium systems. Simplify your supplementing routine at no extra cost!...

  • Red Sea 4-Part Complete Reef Care - Small Pack (40 gal)
    $69.95
    No reviews

    Complete 4-part Supplement Program Optimal coral growth & coloration in non-refugium systems. Simplify your supplementing routine at no extra cost!...

  • Fauna Marin Balling Salts Ca 4 kg
    $54.99
    No reviews

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

  • Fauna Marin RTN/STN X 1000 ml
    $98.99
    No reviews

    Acts Against Tissue Necrosis in Corals Fauna Marin RTN/STN X is a special formula that interferes with the developmental processes...

  • EcoSystem Aquarium Miracle Mud - 5 lbs - SALTWATER
    $31.99 $39.99
    No reviews

    Miracle Mud is a product of EcoSystem Aquarium. Miracle Mud is comprised of up to 80% oceanic mud, harvested from...

  • Brightwell Aquatics Strontion - Liquid Strontium Supplement - 250ml
    $10.15
    No reviews

    Overview Highly-concentrated ionic strontium solution. Incorporated by corals, clams, and other reef-building invertebrates into aragonite, the mineral that is secreted...

  • Blue Life USA Phosphate Rx - 1 oz
    $30.72 $38.40
    No reviews

      Benefits: Phosphate Control is an amazingly simple and effective product that has revolutionized the way phosphates are removed from...

  • 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...

  • Brightwell Aquatics Boost pH+, 250ml
    $8.14
    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) - 1L
    $30.99
    No reviews

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

  • Red Sea Reef Foundation A (Ca/Sr) - 1L
    $30.99
    No reviews

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

  • Red Sea Reef Foundation B (Alk) - 1kg Dry
    $33.99
    No reviews

    Reef Foundation B Carbonate & buffer complex for balanced formation of Coral Skeleton Alk   Calcium, magnesium, strontium and carbonate...

  • 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...

  • Seachem Reef Advangtage **Magnesium 1.2 KG**
    $11.57 $14.46

    OUT OF STOCK

    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
    $10.41 $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
    $7.34 $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...

  • PRODIBIO BioDigest FW/SW 6/vials
    $20.35
    No reviews

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

  • Fauna Marin RED X 250 ml
    $32.99

    OUT OF STOCK

    No reviews

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

  • 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...

  • Blue Life USA Flux Rx 350gal/7000mg
    $41.82 $52.28

    OUT OF STOCK

    No reviews

    Flux RxTM is simple and effective with levels easily achieved and maintained quickly for effectiveness when Bryopsis or Green Hair Algae...

  • 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 MicroBacter QuikCycl Ammonia nutrient for fishless cycle - 125 ml / 4 fl. oz.
    $5.61
    No reviews

    Professional nutrients for fishless cycling and establishing strong nitrifying bacteria beds in freshwater and marine aquariums Overview READ ALL BEFORE...

  • Two Little Fishies Liquid Instant Phosphate Binder 1 gallon (3.8 L)
    $95.82
    No reviews

    Got a little Phosphate problem? You can solve that in a hurry with PhosBan GFO granular ferric oxyhydroxide. But if...

  • Seachem Prime- 1 L / 33.8fl. oz
    $28.39 $35.49
    No reviews

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

  • Seachem StressGuard 250 mL / 8.5 fl. oz.
    $7.65 $9.56
    No reviews

    StressGuard Product Description StressGuard™ is the premium slime coat protection product. StressGuard™ will reduce stress and ammonia toxicity whenever handling...

  • Seachem Pristine - 250 mL / 8.5 fl. oz.
    $8.29 $10.36
    No reviews

    Pristine Product Description Pristine uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break...

  • Prodibio Bioptim SW - 30 vials
    $49.68
    No reviews

    Energize the Beneficial Bacteria in Your Aquarium   Nutrients to Help Bacteria Work More Efficiently Direct Supplement to Prodibio BioDigest...

  • 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,...

  • PRODIBIO BioClean SW 30/vials
    $55.99
    No reviews

    Take Care of Your Aquarium's Bacteria   Combines Prodibio BioDigest and Bioptim Naturally Reduces Nitrates and Phosphates Suitable for Freshwater...

  • 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
    $15.16 $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
    $47.99 $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...

  • Triton Strontium (Sr) 100ml - 10x Concentrate
    $45.00

    OUT OF STOCK

    No reviews

    Strontium macro element seawater supplement. Strontium is an important element that naturally occurs in seawater. Beneficial for calcification of coral...

  • Fauna Marin Color Elements Red/Purple Complex 250ml
    $21.99
    No reviews

    Color Elements Red/Purple Complex - Enhanced Coral Growth and Coloration Introducing a novel blend of trace elements that enhance growth...

  • 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 Balling Trace 3 Health 500 ml
    $26.39
    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 500 ml
    $26.39
    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 500 ml
    $26.39
    No reviews

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

  • 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 Ba - Barium 250ml
    $27.49
    No reviews

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

  • Fauna Marin ELEMENTALS TRACE V - Vanadium 250ml
    $27.49
    No reviews

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

  • Fauna Marin ELEMENTALS TRACE Cr - Chromium 250ml
    $27.49
    No reviews

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

  • Fauna Marin ELEMENTALS Sr - Strontium 1000 ml
    $27.49
    No reviews

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

  • Fauna Marin ELEMENTALS K - Potassium 1000 ml
    $27.49
    No reviews

    Highly Concentrated Potassium Fauna Marin Elementals K is a highly concentrated potassium solution for saltwater aquariums with potassium deficiencies. The...

  • Fauna Marin Multi Elements A Trace Element Complex 500 ml
    $28.59
    No reviews

    Multi Elements A - Trace Element Solution for Calcium Reactor Users Multi Elements A contains the elements responsible for coral...