ADDITIVES (476)
Best selling Best selling
  • Fauna Marin Bacto Reef Blend 500 ml
    $46.19

    OUT OF STOCK

    No reviews

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

  • CupriSorb 250 ml
    $19.72
    No reviews

    CupriSorb" is a powerful adsorbent of copper and heavy metals. CupriSorb"  will remove copper more rapidly and efficiently than carbon...

  • ATI ICP Element Vanadium - 150 mL
    $19.95
    No reviews

    ATI ICP Element Vanadium - 150 mL ATI ICP Element Vanadium is a high-purity trace element supplement used to restore...

  • ATI Essentials Mixed Reef - 5.4 Liter Set
    $59.95
    No reviews

    ATI Essentials Mixed Reef - 5.4 Liter Set (2 x 2.7 L Bottles) ATI Essentials Mixed Reef is a highly...

  • Two Little Fishes AcroPower Amino Acids for SPS corals - Gallon
    $77.89
    No reviews

    Two Little Fishes AcroPower Amino Acids for SPS corals - 1 Gallon AcroPower supplies amino acids that corals need to...

  • Fauna Marin Balling Salts Ca 4 kg
    $57.74

    OUT OF STOCK

    No reviews

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

  • Reef Delete ITC V1.02 - Sterilize Aiptasia and Other Pests
    $399.99
    No reviews

    Reef Delete is the ultimate reefing tool for pest and aquarium maintenance - Whether its destroying Aiptasia, Algaes or Flatworms...

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

    NeoPlex is a broad spectrum antibiotic effective against most external infections of both marine and freshwater fish. Used as directed,...

  • 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,...

  • Coral Rx One Shot Coral Dip - Single Shot Dosage
    $2.54 $2.99
    No reviews

    Most reef tank owners do not have access to well designed quarantine systems as they are expensive and time consuming....

  • 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
    $33.99 $39.99
    No reviews

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

  • ME Coral Magnesium Powder (makes 1 gal)
    $22.94 $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...

  • B-IONIC Magnesium 32 Fl.oz
    $16.99 $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...

  • Fauna Marin Reef Start PRO Bac 60ml
    $17.31
    No reviews

    The Ideal Bacteria for Starting a New Reef Aquarium Fauna Marin's Reef Start PRO Bac is a highly effective product...

  • Brightwell MicroBacter QuikCycl Ammonia nutrient for fishless cycle - 125 ml / 4 fl. oz.
    $5.95
    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 500 ml
    $25.86
    No reviews

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

  • Brightwell Aquatics Reef BioFuel - Enhances Nutrient Uptake
    $13.13
    No reviews

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

  • ATI Essentials SPS Reef - 5.4 Liter Set
    $52.95
    No reviews

    ATI Essentials SPS Reef - 5.4 Liter Set (2 x 2.7 L Bottles) ATI Essentials SPS is a concentrated, ready-to-use...

  • Fauna Marin AEFW X 500 ml- EXP 6/25
    $1.99 $54.99
    No reviews

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

  • Fauna Marin Color Elements Red/Purple Complex 500ml
    $28.86

    OUT OF STOCK

    No reviews

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

  • Fauna Marin ELEMENTALS TRACE Ba - Barium 250ml
    $28.86

    OUT OF STOCK

    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
    $28.86
    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 Fe - Iron 250ml
    $28.86
    No reviews

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

  • Fauna Marin ELEMENTALS Sr - Strontium 1000 ml
    $28.86
    No reviews

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

  • Fauna Marin Multi Elements B Trace Element Complex 500 ml
    $30.02
    No reviews

    Multi Elements B - Trace Element Solution for Calcium Reactor Users Multi Elements B contains substances and compounds essential for...

  • ME Coral Fluoride 2 oz
    $16.99 $19.99
    No reviews

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

  • 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 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...

  • 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...

  • Brightwell Aquatics Replenish - Liquid Trace & Minor Mineral
    $18.49
    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
    $14.75
    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) - 1kg Dry
    $33.99
    No reviews

    Reef Foundation C A magnesium complex for balanced formation of coral skeletons Mg   Calcium, magnesium, strontium and carbonate are...

  • 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,...

  • Fauna Marin DINO X 250 ml
    $34.64

    OUT OF STOCK

    No reviews

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

  • Brightwell Aquatics Razor Marine, Systemic Cleaner, coral safe 2L
    $72.84
    No reviews

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

  • 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...

  • 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 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 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 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...

  • ATI ICP Element Fluorine - 1000 mL
    $29.95
    No reviews

    ATI ICP Element Fluorine - 1000 mL ATI ICP Element Fluorine is a high-purity solution designed to restore fluorine levels...

  • API General Cure Powder Packet
    $16.38
    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 Blue Green Slime Stain Remover
    $11.01 $12.95

    OUT OF STOCK

    No reviews

    “Blue-Green Slime Stain Remover” UltraLife Blue Green Slime Stain Remover is a revolutionary time tested product, that will efficiently and...

  • Ultralife Aiptasia and Majano Remover
    $9.31 $10.95
    No reviews

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

  • Brightwell Aquatics Polyp Ignite - 125 ml
    $28.83
    No reviews

    Polyp Ignite Polyp stimulator amino acid, fatty acid and pigment complex for stimulating a feeding response in corals and their...

  • Boyd's Vita-Chem Marine 16 oz (16709-2)
    $34.02 $40.02
    No reviews

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

  • Brightwell Aquatics Restor - Liquid Coral Tissue Nutritional
    $13.13
    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
    $54.36
    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 NI - Nickel 250ml
    $28.86
    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 N - Nitrogen 1000 ml
    $40.41
    No reviews

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