ADDITIVES (455)
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  • Fauna Marin ELEMENTALS TRACE NI - Nickel 250ml
    $27.49
    No reviews

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

  • Fauna Marin ELEMENTALS Sr - Strontium 1000 ml
    $27.49

    OUT OF STOCK

    No reviews

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

  • SEA LAB FORMULA #28 - APPROX 50 PCS (NUGGET)
    $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...

  • Fauna Marin Balling Salts Kh 4 kg
    $54.99

    OUT OF STOCK

    No reviews

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

  • 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...

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

    SulfaPlex is an effective and safe treatment for many bacterial, fungal and protozoan infestations in the aquarium. While it can...

  • 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...

  • PolypLab Reef Primer 180g Coral Dip
    $44.99
    No reviews

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

  • 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...

  • 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 Adv. Magnesium 600 g / 1.3 lbs
    $10.54
    No reviews

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

  • B-IONIC Magnesium 32 Fl.oz
    $19.99
    No reviews

    B-Ionic Magnesium Through the chemical process known as "ion-pairing", magnesium ion concentration influences the saturation point for calcium carbonate in...

  • Brightwell Aquatics Reef Snow - 250ml - Replicates Marine Snow in al
    $12.37

    OUT OF STOCK

    No reviews

    Overview • Complex of carbonate-bound, non-conservative major, minor, and trace elements in aragonite ratios, as well as marine-derived proteins and...

  • Hydrospace PNS HomeGro (grow your own live Probio 2.5 gal)
    $145.99
    No reviews

    PNS HomeGro Big Savings on Mass Quantities of Natural Live Bacterioplankton: Provide superior nutrition, while controlling nutrients and organic wastes,...

  • Seachem Stability 4L/1gal
    $86.67
    No reviews

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

  • Red Sea Reef Mature Starter Kit
    $39.99
    No reviews

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

  • 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...

  • Seachem Pristine - 500 mL / 17 fl. oz.
    $19.62
    No reviews

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

  • Brightwell Aquatics Reef BioFuel - Enhances Nutrient Uptake
    $12.39
    No reviews

    Overview • Helps maintain a balanced nutrient-limited marine aquarium by enabling the hobbyist to enhance the rate of microbial growth...

  • Brightwell Aquatics Restor - Liquid Coral Tissue Nutritional
    $12.39
    No reviews

    Overview Encourages health, growth, reproduction, and vibrant coloration. Provides important nutrients to corals and their allies during periods of stress...

  • Brightwell Aquatics CoralAmino - Free Form Amino Acid Supplement 250ml
    $51.29
    No reviews

    Overview: Complex of free-form amino acids in the same ratios found within tissues of stony corals. Beneficial to all corals...

  • 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 Fe - Iron 250ml
    $27.49
    No reviews

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

  • 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...

  • ME Coral Fluoride 2 oz
    $19.99
    No reviews

    ME Fluoride is a highly concentrated solution of Sodium Fluoride of the highest purity.  Aquarium seawater can become Fluoride depleted. ...

  • ATI Elements - Manganese 100ml
    $18.95

    OUT OF STOCK

    No reviews

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

  • ATI Elements - Bromine 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...

  • Red Sea 4-Part Complete Reef Care - Small Pack (40 gal)
    $69.99

    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!...

  • Fauna Marin Balling Salts Ca 2 kg
    $32.99
    No reviews

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

  • 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 - 500 mL / 17 fl. oz.
    $15.18
    No reviews

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

  • Seachem Flourish Excel 4 L / 1 fl. gal.
    $75.01

    OUT OF STOCK

    No reviews

    Flourish Excel" is a source of bio available organic carbon. All plants require a source of carbon. This is typically...

  • Hikari Prazipro 4oz
    $15.49
    No reviews

    NOTE: Picture show is of 16oz bottle, this is the 4oz bottle.   The World’s First Ready-To-Use, Liquid Concentrate Praziquantel...

  • 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
    $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...

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $17.44
    No reviews

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

  • Brightwell Aquatics Boost pH+ 500ml
    $13.92

    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...

  • 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...

  • ME Coral Kalk Powder (1 GAL container)
    $21.99
    No reviews

    ME Pharmaceutical grade  Kalkwasser (Kalk) which is also known as Lime or Calcium Hydroxide. It is the only chemical that...

  • ME Coral Magnesium Powder (makes 1 gal)
    $26.99
    No reviews

    MECoral Magnesium (Mg)  powder is pre-measured to make a gallon liquid solution when mixed with RODI water.  MECoral uses only...

  • Fauna Marin DINO X 250 ml
    $32.99
    No reviews

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

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

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

  • Brightwell ChaetoGro 250 ml /8.5 fl. oz.
    $12.39
    No reviews

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

  • 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

    OUT OF STOCK

    No reviews

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

  • Seachem StressGuard 250 mL / 8.5 fl. oz.
    $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 Purigen 250 ML
    $17.71
    No reviews

    Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion...

  • 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),...

  • Ultralife Aiptasia and Majano Remover
    $10.95
    No reviews

    Aiptasia & Majano Remover The latest development for the removal of Aiptasia & Majano Anemones. Ultralife, thru years of research...