ADDITIVES (439)
Best selling Best selling
  • Triton Infusion 100ml
    $29.00
    No reviews

    The new modular TRITON Method Flexible, cheap and for all aquarium types INFUSION is a blend of trace elements and...

  • Triton Nickel 100ml
    $32.00
    No reviews

    Nickel trace element seawater supplement. Beneficial for SPS/LPS coral colour and health. Nickel trace element seawater supplement. Beneficial for SPS/LPS...

  • ME Coral Iodine 2 oz
    $19.99
    No reviews

    ME Iodine concentrate is a pharmaceutical grade concentrated additives for maintaining appropriate levels of Iodine in modern aquariums.  Iodine levels...

  • ATI Elements - Vanadium 100ml
    $18.95
    No reviews

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

  • ESV B-Ionic Transition Elements PLUS+ 32oz
    $32.99
    No reviews

    B-Ionic Transition Elements PLUS+   B-Ionic Transition Elements Plus is the latest product by ESV, formulated by Bob Stark in...

  • Red Sea Reef Colors D (Trace) 500ml
    $19.99
    No reviews

    Coral Colors D A trace element complex that promotes the Purple/Blue colors in corals Bioactive trace elements   Coral Colors...

  • Red Sea Reef Colors C (Iron/Trace) 500ml
    $19.99
    No reviews

    Coral Colors C An iron and complementary trace element complex that promotes the Green colors in corals Fe & Trace...

  • Boyd's Vita-Chem Marine 4 oz (16707-8)
    $13.32
    No reviews

    Concentrated with 10 times more omega 3's than any other vitamin. Vita-chem brings out the natural color of fish -...

  • 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...

  • Red Sea 4-Part Complete Reef Care - Medium Pack (80 gal)
    $109.95
    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 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...

  • Fauna Marin RTN/STN X 500 ml
    $54.99
    No reviews

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

  • Seachem PolyGuard - 10 g / 0.4 oz
    $8.14
    No reviews

    PolyGuard is the single most effective medication to keep freshwater fish free of disease! It is an effective treatment and...

  • Seachem ParaGuard - 250 mL / 8.5 fl. oz.
    $9.85
    No reviews

    ParaGuard is the only fish and filter safe aldehyde based (10% by weight) parasite control product available (for parasites on...

  • Seachem Cupramine - 250 mL / 8.5 fl. oz.
    $19.08
    No reviews

    Cupramine effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is superior to...

  • Hikari Prazipro 1oz
    $4.79
    No reviews

    PraziPro Liquid PraziPro is a ready-to-use, liquid concentrate that was developed to offer the hobbyist an effective way to control...

  • EcoSystem Aquarium Miracle Mud - 5 lbs - SALTWATER
    $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
    $9.22
    No reviews

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

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $77.52
    No reviews

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

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $15.85
    No reviews

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

  • Blue Life USA Red Cyano Rx
    $7.99 $23.85
    No reviews

    Red Cyano Rx will quickly and effectively treat disease causing Cyano bacteria from live rock, live coral and live sand...

  • Brightwell Aquatics Boost pH+ 2L
    $42.21
    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) - 1L
    $28.99
    No reviews

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

  • Red Sea Reef Foundation B (Alk) - 1kg Dry
    $31.99
    No reviews

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

  • Red Sea Reef Foundation A (Ca/Sr) - 1kg Dry
    $31.99
    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...

  • Seachem Reef Buffer 500 g / 1.1 lbs
    $13.01
    No reviews

    Reef Buffer" will also raise carbonate alkalinity; however, it is intended primarily for use as a buffer in a reef...

  • 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...

  • Brightwell Aquatics NeoNitro - 2L
    $28.69
    No reviews

    Overview Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enables natural phosphorus uptake to take place in systems...

  • Fauna Marin RED X 500 ml
    $54.99
    No reviews

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

  • Fauna Marin 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 DINO X 500 ml
    $54.99
    No reviews

    Fight Against Gold Algae and Dinoflagellates Infections DINO X is a liquid algicide that fights against gold algae and other...

  • Blue Life USA Flux Rx 350gal/7000mg
    $52.28
    No reviews

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

  • Blue Life USA Flux Rx 200gal/4000mg
    $37.75
    No reviews

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

  • Triton CYA-NO
    $28.00
    No reviews

    CYA-NO is a cyanobacteria inhibitor. Derived through TRITON’s unique scientific work in N-DOC lab testing and establishing the TRITON N:C:P...

  • Red Sea Reef Mature Starter Kit
    $38.99
    No reviews

    REEF MATURE STARTER KIT Complete biological maturation program for reef and marine aquariums. Nitrification + Nitrate and Phosphate reduction. Includes...

  • 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...

  • Seachem Stability - 250 mL / 8.5 fl. oz.
    $8.99
    No reviews

    Stability Product Description Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the...

  • Red Sea NO3:PO4-X Nitrate & Phosphate reducer 500ml
    $23.99
    No reviews

    Red Sea NO3: PO4-X is a unique complex of carbons that are used by nutrient reducing bacteria. Each carbon in...

  • Phosphat-E Liquid Phosphate Remover 8.5 oz
    $26.85
    No reviews

    Overview: Begins to eliminate reactive phosphate immediately upon addition to aquarium. Safe for all inhabitants of reef and marine fish-only...

  • Algone Aquarium Water Clarifier & Nitrate Remover - Large 6 Pouches - 110 Gallons & Up
    $9.99 $17.50
    No reviews

    The Complete Aquarium Maintenance Solution   Cardinal in Reef Tank Use in any kind of aquarium Clear cloudy aquarium water...

  • Brightwell Aquatics Liquid Reef - 500ml
    $22.53

    OUT OF STOCK

    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
    $14.09

    OUT OF STOCK

    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
    $10.14

    OUT OF STOCK

    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
    $6.61

    OUT OF STOCK

    No reviews

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

  • Brightwell Aquatics Fish Recover M - 1L
    $29.53

    OUT OF STOCK

    No reviews

    All-natural anti-bacterial fish remedy for the treatment of sick fish Overview All-Natural, botanical extract remedy for the treatment of a...

  • Brightwell Aquatics Fish Recover M - 500ml
    $15.15

    OUT OF STOCK

    No reviews

    All-natural anti-bacterial fish remedy for the treatment of sick fish Overview All-Natural, botanical extract remedy for the treatment of a...

  • Brightwell Aquatics Fish Recover M - 250ml
    $8.48

    OUT OF STOCK

    No reviews

    All-natural anti-bacterial fish remedy for the treatment of sick fish Overview All-Natural, botanical extract remedy for the treatment of a...

  • ATI Essentials Pro #2 - 2 L
    $28.95

    OUT OF STOCK

    No reviews

    ATI Essentials Pro #2 ONLY - 2L   More than a basic dose ATI Essentials Pro goes beyond your normal...

  • ATI Essentials Pro #1 - 2 L
    $28.95

    OUT OF STOCK

    No reviews

    ATI Essentials Pro #1 ONLY - 2 L   More than a basic dose ATI Essentials Pro goes beyond your...

  • API General Cure Powder Packet
    $15.99

    OUT OF STOCK

    No reviews

    API GENERAL CURE fish remedy treats a wide variety of parasitic diseases including velvet, hole-in-the-head disease (Hexamita spp. & Spironucleus),...