ADDITIVES (476)
Best selling Best selling
  • MISC-ITEM
    $12.00
    No reviews

  • ESV B-Ionic Nitrate 32 fl. oz.
    $16.99 $19.99
    No reviews

    We are proud to introduce B-Ionic Nitrate which is a concentrated source of nitrate in the form of a highly...

  • 0011605530, Seachem Reef Iodine 500ML
    $11.47
    No reviews

    Reef Iodide™ is an iodide supplement for those with dense populations of invertebrates or soft corals. It is also useful...

  • Seachem Reef Plus 500 ML
    $11.92
    No reviews

    Reef Plus™is a full spectrum supplement of trace components such as iodide, bromide, molybdenum, iron, manganese, cobalt, potassium, inositol, choline;...

  • 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...

  • Copper Power Blue for Saltwater - 16 fl oz
    $19.99
    No reviews

    COPPER POWER has been a preferred choice for marine fish enthusiasts fish stores, and aquariums since 1984. We are happy...

  • Red Sea Reef Colors D (Trace) 500ml
    $20.99
    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 B (Potassium) 500ml
    $20.99
    No reviews

    Coral Colors B Potassium complex that promote the Red colors in corals K & Trace elements   Coral Colors B...

  • Red Sea Trace Colors A (Iodine/Halogens) - 500 ml
    $20.99
    No reviews

    Coral Colors A Iodine/Halogen complex that promote the pink colors in corals I2 | Br2 | F2   Coral Colors...

  • Blue Life USA Aiptasia Rx
    $10.73 $12.62
    No reviews

      Benefits: Aiptasia Control is a simple, Veterinarian approved, and quick solution for controlling aiptasia and other nuisance anemones. This...

  • Reef Code B - Balanced Calcium & Alkalinity System - Part B - 2 Liter
    $23.76
    No reviews

    Overview • The carbonate-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing...

  • Brightwell Aquatics MicroBacter Clean 1 L
    $42.59
    No reviews

    Microbial culture & enzyme blend designed to target and clean surfaces of live rock and more Overview Complex system of...

  • Seachem Stability - 500 mL / 17 fl. oz.
    $17.04
    No reviews

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

  • Phosphat-E Liquid Phosphate Remover 17oz
    $48.71

    OUT OF STOCK

    No reviews

    Phosphat-E Liquid Phosphate Remover 17oz

  • Brightwell MicroBacter Purple M - 4 Liter
    $140.92
    No reviews

    Live Beneficial Bacteria – Advanced Purple Non-Sulfur Bacteria (PNSB) supplement that enhances natural nutrient cycling, supports biological filtration, and improves...

  • Ultralife Red Slime Stain Remover, .71 Oz (treats 300 gallons)
    $14.41 $16.95
    No reviews

    Previously know as the Ultralife Red Slime Remover, new packaging-same great product! Ultralife Red Slime Stain Remover is a revolutionary...

  • PolypLab Medic 30ml Reef Safe Fish Mediciation
    $39.99
    No reviews

    What is Medic? Medic is a highly effective water conditioner used to de-pollute water in both marine and freshwater environments....

  • ME Coral Alkalinity Powder (makes 1 gal)
    $12.74 $14.99
    No reviews

    MECoral Kh powder is pre-measured to make a 1 gallon liquid solution when mixed with your RODI water.   MECoral uses...

  • ME Coral Calcium Powder (makes 1 gal)
    $12.74 $14.99
    No reviews

    MECoral Calcium (Ca) powder is premeasured  to make a 1 gallon liquid solution when mixed with your RODI water.   MECoral...

  • ESV B-IONIC CALCIUM BUFFER 64 OZ (2x32)
    $25.49 $29.99
    No reviews

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

  • Fauna Marin ReBiotic 100% Natural 100 ml (50 grams) (1.76 ounces)
    $38.10
    No reviews

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

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

    ATI ICP Element Manganese - 150 mL ATI ICP Element Manganese is a high-purity solution designed to replenish manganese in...

  • Fauna Marin ELEMENTALS TRACE Zn - Zinc 250ml
    $28.86
    No reviews

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

  • ESV B-Ionic Nitrate 16 fl. oz.
    $12.74 $14.99
    No reviews

    We are proud to introduce B-Ionic Nitrate which is a concentrated source of nitrate in the form of a highly...

  • Red Sea Reef Colors C (Iron/Trace) 500ml
    $20.99
    No reviews

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

  • Fauna Marin RTN/STN X 500 ml
    $57.74

    OUT OF STOCK

    No reviews

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

  • ESV KALKWASSER 14 oz
    $12.74 $14.99
    No reviews

    Calcium Hydroxide (Kalkwasser Powder)   Calcium Hydroxide is a proven standard for maintaining calcium concentration and alkalinity in closed marine...

  • Brightwell Aquatics Reef Snow - 250ml - Replicates Marine Snow in al
    $13.11

    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...

  • Brightwell Aquatics Magnesion - Liquid Magnesium Supplement
    $8.64
    No reviews

    Overview: Highly-concentrated ionic magnesium solution. Provides magnesium, which helps regulate the balance between calcium and carbonates in aquarium water, and...

  • Brightwell Aquatics NeoNitro - 2L
    $33.46
    No reviews

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

  • Fauna Marin Bacto Reef Therapy 250 ml
    $30.02
    No reviews

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

  • 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...

  • Brightwell ChaetoGro - 500 ml / 17 fl. oz.
    $23.87
    No reviews

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

  • 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 - 100 mL / 3.4 fl. oz.
    $5.14
    No reviews

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

  • Copper Power Green for Freshwater - 16 fl oz
    $19.99
    No reviews

    COPPER POWER GREEN has been a preferred choice for fish enthusiasts, fish stores, and aquariums since 1984. We are happy...

  • ME Coral Nitrate 32 oz
    $16.99 $19.99
    No reviews

    ME Nitrate (NO3) is designed to raise nitrates in Low Nutrient systems.  Some systems can become Nitrate (NO3) depleted which...

  • Two Little Fishes AcroPower Amino Acids for SPS corals - 250
    $14.94
    No reviews

    Two Little Fishes AcroPower Amino Acids for SPS corals - 250 AcroPower supplies amino acids that corals need to build...

  • Seachem Vitality - 50 mL / 1.7 fl. oz.
    $4.51
    No reviews

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

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

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

  • SEA LAB FORMULA #28 - APPROX 50 PCS (NUGGET)
    $7.64 $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...

  • Triton Core7 Base Elements 3.8L (1 Gallon) Complete Set
    $159.00
    No reviews

    Included: 4 x 1 gal jugs.  Part 1, Part 2, Part 3a and Part 3B   For Triton Method:  CORE7...

  • Fauna Marin Balling Salts Kh 4 kg
    $57.74

    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 Light Set
    $138.59
    No reviews

    Easily Supply Your Aquarium with the Elements and Minerals it Needs in the Fauna Marin Balling Light Set. The Fauna...

  • Fauna Marin ELEMENTALS TRACE Cu - Copper 250ml
    $28.86
    No reviews

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

  • 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...

  • Majano Wand Majano and Aiptasia Remover
    $173.24
    No reviews

    So Easy, It's Like Magic. The Majano Wand is an easy and effective tool for ridding your tank of pesky...

  • Brightwell Aquatics Strontion - Liquid Strontium Supplement - 250ml
    $10.76
    No reviews

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

  • 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 C (Mg) - 500ml Liquid
    $20.99
    No reviews

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

  • Red Sea Reef Foundation B (Alk) - 500ml Liquid
    $20.99
    No reviews

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

  • Brightwell Aquatics NeoPhos - 2 L
    $33.46
    No reviews

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