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Supplements

Have you ever wondered if you should be adding supplements to your saltwater aquarium? There's no single answer that fits every situation. The answer actually depends solely on what types of marine life you have in your home aquarium. If you have a fish only tank and do regular small water changes, you probably don't need to add anything to the tank. But, if you have invertebrates or corals in your tank you might need to add supplements to keep them healthy and thriving.

Saltwater consists of numerous elements at various concentrations referred to as PPM, or Parts Per Million. Although high quality saltwater mixes are designed to mimic these ratios as closely as possible, different brands, types and mixes have different concentrations of some of these elements. All of the elements that are found in the oceans water are crucial in keeping your fish, coral and other marine life healthy. And, as your aquarium runs, some of these elements can become depleted.

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  • Reef Trace (500 mL) - Seachem

    Reef Trace (500 mL) - Seachem

    Seachem
    $11.69
    Replenishment of a number of trace elements is required to maintain an environment ideal for the growth and reproduction of marine life, but while the importance of trace elements has been recognized by aquarists for many years, the physiological reasons...
  •  Chaeto Gro Chaetomorpha - (500 ml) - Brightwell

    Chaeto Gro Chaetomorpha - (500 ml) - Brightwell

    Brightwell Aquatics
    $23.87
    ChaetoGrō Complete phosphate and nitrate free multi-nutrient with iron, cobalt and molybdenum for chaetomorpha growth and vigor in all marine systems Overview For all marine aquariums & ULNS systems Shrimp & Invertebrate safe Phosphate...
  • NeoPhos - Balanced Phosphorus Supplement (500 ml) - Brightwell

    NeoPhos - Balanced Phosphorus Supplement (500 ml) - Brightwell

    Brightwell Aquatics
    $14.04
    Balanced Phosphorus Source for Phosphorus-Limited, Low-Nutrient Reef Aquaria Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enables natural nitrogen uptake to take place in systems with inadequate phosphorus...
  • MicroBacter Purple M (500 ML - 16 oz) - Brightwell

    MicroBacter Purple M (500 ML - 16 oz) - Brightwell

    Brightwell Aquatics
    $25.30
    Live Beneficial Bacteria – Introduces a diverse range of shelf stable photosynthetic bacteria that work alongside MicroBacter 7 and MicroBacter Clean for enhanced waste breakdown and microbial balance. Dual Aerobic & Anaerobic Function...
  • On Sale 15%
    TURBOSTART 900 Saltwater (16 oz) Live Nitrifying Bacteria - Fritz
    On Sale 15%

    TURBOSTART 900 Saltwater (16 oz) Live Nitrifying Bacteria - Fritz

    Fritz Aquatics
    $93.49
    $79.47
    Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive...
  • On Sale 12%
    Reef Mature Starter Kit (Aquarium Cycling Solution 65 Gallon) - Red Sea
    On Sale 12%

    Reef Mature Starter Kit (Aquarium Cycling Solution 65 Gallon) - Red Sea

    Red Sea
    $39.99
    $35.19
    Red Sea’s Reef Mature Starter Kit provides a complete program for the biological maturation of your reef aquarium, establishing full nitrification plus nitrate and phosphate reduction in a few weeks. Most biological ‘cycling’ products...
  • On Sale 25%
    Pharma Calcium Chloride 1-Gallon Mix (Single Use) - Bulk Reef Supply
    On Sale 25%

    Pharma Calcium Chloride 1-Gallon Mix (Single Use) - Bulk Reef Supply

    Bulk Reef Supply
    $8.99
    $6.74
    Ultra-pure Calcium Chloride for 2-part dosing in your reef tank! Bulk Reef Supply 2-part additives are the perfect solution to replenish the intake of calcium and alkalinity coral consumes when it grows. Using only pharmaceutical based...
  • On Sale 15%
    Elimi-NP (250 ml) - Tropic Marin
    On Sale 15%

    Elimi-NP (250 ml) - Tropic Marin

    Tropic Marin
    $20.99
    $17.84
    Carbon dosing concentrate for effective reduction of nitrates and phosphates. Suitable for all saltwater aquariums with increased phosphate concentration and a low nitrate/phosphate ratio, as frequently observed in reef aquariums with a calcium reactor...
  • Reef Fusion "2" Two Part Calcium/Buffer System (4 L) - Seachem

    Reef Fusion "2" Two Part Calcium/Buffer System (4 L) - Seachem

    Seachem
    $32.33
    Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef...
  • Garlic Guard (500 mL) - Seachem

    Garlic Guard (500 mL) - Seachem

    Seachem
    $11.33
    GarlicGuard™ is an appetite/flavor enhancer for freshwater and saltwater fish. GarlicGuard™ will help renew the interest of poor or finicky eaters. GarlicGuard™ contains naturally derived garlic oil. GarlicGuard™ also contains...
  • On Sale 12%
    5L
    On Sale 12%

    Reef Energy AB+ Plus Coral Food (5 L) - Red Sea

    Red Sea
    $169.99
    $149.59
    An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming. Based on our long-term research, Reef Energy...
  • On Sale 25%
    Pharma Soda Ash 1 Gallon Mix (Single Use) - Bulk Reef Supply
    On Sale 25%

    Pharma Soda Ash 1 Gallon Mix (Single Use) - Bulk Reef Supply

    Bulk Reef Supply
    $10.99
    $8.24
    Ultra-pure Grade Soda Ash for 2-part dosing in your reef tank! Bulk Reef Supply 2-part additives are the perfect solution to replenish the intake of calcium and alkalinity coral consumes when it grows. Using only pharmaceutical grade...
  • Reef Plus (500 mL) - Seachem

    Reef Plus (500 mL) - Seachem

    Seachem
    $11.69
    Reef Plus™ is a full spectrum reef supplement containing trace elements, vitamins, and amino acids demonstrated to have a positive impact on the growth of corals and other desirable reef creatures. Reef Plus™ is formulated to provide...
  • Reef BluePrint Isol8:F - Fluoride (60 mL) - Captiv8 Aquaculture

    Reef BluePrint Isol8:F - Fluoride (60 mL) - Captiv8 Aquaculture

    Captiv8 Aquaculture
    $12.23
    Parameter Fluoride Value 10,000 ppm Characteristics Provides fluoride; application thereof in conjunction with weekly ICP analysis to guide dosing rates typically yields deep intensification of blue pigmentation in...
  • Red Cyano Rx (Treats 400 Gallons) Removes Cyanobacteria - Blue Life USA

    Red Cyano Rx (Treats 400 Gallons) Removes Cyanobacteria - Blue Life USA

    Blue Life USA
    $23.85
    Red Cyano Rx will quickly and effectively treat disease causing Cyano bacteria from live rock, live coral and live sand in your saltwater aquarium without harming any of its inhabitants including beneficial bacteria when used as directed. Unlike other...
  • On Sale 20%
    Potassium Concentrate (500 ML - 16 oz) - Two Little Fishies
    On Sale 20%

    Potassium Concentrate (500 ML - 16 oz) - Two Little Fishies

    Two Little Fishies
    $12.75
    $10.20
    Julian Sprung's Reef Formula Potassium occurs at a concentration of about 400 mg/L in full-strength natural seawater. It is an essential element for metabolic function of all living cells. Sometimes artificial seawater mixes are deficient in potassium,...
  • On Sale 12%
    Reef Foundation B - Alkalinity (KH) (500 ml) Liquid - Red Sea
    On Sale 12%

    Reef Foundation B - Alkalinity (KH) (500 ml) Liquid - Red Sea

    Red Sea
    $20.99
    $18.47
    KH/Alkalinity Supplement Carbonate & buffer complex for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements...
  • Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell

    Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell

    Brightwell Aquatics
    $25.72
    Overview  • Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc...
  • On Sale 25%
    Pharma Magnesium Mix for General Adjustments - Bulk Reef Supply
    On Sale 25%

    Pharma Magnesium Mix for General Adjustments - Bulk Reef Supply

    Bulk Reef Supply
    $19.99
    $14.99
    Ultra Pure Magnesium Additive for General Adjustments in your Reef Tank! Maintaining proper magnesium levels helps achieve the essential balance of calcium and alkalinity in your tank by preventing excess calcium carbonate precipitation. Not all...
  • Reef Fusion "1" Two Part Calcium/Buffer System (4 L) - Seachem

    Reef Fusion "1" Two Part Calcium/Buffer System (4 L) - Seachem

    Seachem
    $32.33
    Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef...
  • Reef Iodide (500 mL)- Seachem

    Reef Iodide (500 mL)- Seachem

    Seachem
    $11.24
    Reef Iodide™ is a concentrated (8,000 mg/L) stabilized potassium iodide source for reef aquaria that will restore and maintain iodide levels to those found in natural sea water. It is formulated to provide a safe source of iodide that will not...
  • NeoNitro (2 L) - Brightwell

    NeoNitro (2 L) - Brightwell

    Brightwell Aquatics
    $33.46
    Balanced Nitrogen Source for Nitrogen-Limited, Low-Nutrient Reef Aquaria Overview Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enablesnatural phosphorus uptake to take place in systems with inadequate nitrogen content,lowering...
  • On Sale 12%
    4-Part RCP Complete Reef Care Dosing System - Large (600L - 160 Gal) - Red Sea
    On Sale 12%

    4-Part RCP Complete Reef Care Dosing System - Large (600L - 160 Gal) - Red Sea

    Red Sea
    $189.99
    $167.19
    Meet the new 4-part Complete Reef Care, providing hobbyists with more convenience at no extra cost, and ensuring optimal coral growth and vivid colors with only one test per week!  Our long-term research has revealed that in most reef systems...
  • Magnesion - Liquid Magnesium Supplement 2L - Brightwell

    Magnesion - Liquid Magnesium Supplement 2L - Brightwell

    Brightwell Aquatics
    $31.41
    Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic magnesium solution. Provides magnesium, which helps regulate the balance between calcium andcarbonates in aquarium water, and is a...
  • On Sale 15%
    Cyo-Control (500 ml) - Tropic Marin
    On Sale 15%

    Cyo-Control (500 ml) - Tropic Marin

    Tropic Marin
    $35.99
    $30.59
    Tropic Marin® Cyo-Control naturally blocks the recurrence of cyanobacteria in the aquarium. After the cyanobacteria have been removed manually, the probiotic bacteria of Tropic Marin® Cyo-Control settle in their place. Once these...
  • Nitrate + (1000 ml) - NYOS

    Nitrate + (1000 ml) - NYOS

    NYOS
    $19.99
    Control of nutrients made easy. Only raises the nitrate value No undesirable additives High degree of purity Nyos® NITRATE+ and PHOSPHATE+ allows you to raise nitrate and phosphate levels quickly, easily and safely. The correct nitrate and...
  • On Sale 12%
    Reef Foundation C - Magnesium (MG) (500 ml) Liquid - Red Sea
    On Sale 12%

    Reef Foundation C - Magnesium (MG) (500 ml) Liquid - Red Sea

    Red Sea
    $20.99
    $18.47
    Magnesium Supplement Magnesium supplement for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements need to be...
  • On Sale 12%
    Foundation Supplements Complete Pack CA, ALK, MG - (250ml) - Red Sea
    On Sale 12%

    Foundation Supplements Complete Pack CA, ALK, MG - (250ml) - Red Sea

    Red Sea
    $32.99
    $29.03
    Red Sea's Reef Foundation Complete Supplement Pack contains all five of the essential foundation elements required in order for corals to thrive within the reef aquarium. Unlike the natural reef where there is an immense reservoir of foundation...
  • On Sale 15%
    Reef Actif (60 g) Coral Food - Tropic Marin
    On Sale 15%

    Reef Actif (60 g) Coral Food - Tropic Marin

    Tropic Marin
    $22.99
    $19.54
    For treating aquarium water between water changes. Tropic Marin® Reef Actif is made up of a mixture of natural organic substances of predominantly marine origin. The biopolymers in Tropic Marin® Reef Actif bind excess nutrients...
  • Reef Advantage Magnesium (1.2 kg) - Seachem

    Reef Advantage Magnesium (1.2 kg) - Seachem

    Seachem
    $14.18
    Severely depleted levels of magnesium (below 800 mg/L) can cause depressed pH levels and an inability to maintain proper magnesium levels. The most frequent causes of magnesium deficiency are use of kalkwasser, frequent overdosing of a carbonate...
  • On Sale 15%
    Kalkwasser Powder Calcium Hydroxide (3.5 lbs) - ESV
    On Sale 15%

    Kalkwasser Powder Calcium Hydroxide (3.5 lbs) - ESV

    ESV
    $29.99
    $25.49
    Maintain a thriving reef ecosystem with the purity of ESV Kalkwasser. A cornerstone of marine aquarium care for decades, Calcium Hydroxide is a proven, economical method for maintaining both calcium concentrations and alkalinity in closed marine systems...
  • On Sale 12%
    Reef Foundation A - Calcium (CA) - (5 Liter / 1.32 Gal) - Red Sea
    On Sale 12%

    Reef Foundation A - Calcium (CA) - (5 Liter / 1.32 Gal) - Red Sea

    Red Sea
    $119.00
    $104.72
    Calcium+ Supplement Calcium and Strontium complex for balanced formation of the coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements...
  • On Sale 12%
    Reef Foundation A - Calcium (CA) (500 ml) Liquid - Red Sea
    On Sale 12%

    Reef Foundation A - Calcium (CA) (500 ml) Liquid - Red Sea

    Red Sea
    $21.99
    $19.35
    Calcium+ Supplement Calcium and Strontium complex for balanced formation of the coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements...
  • On Sale 15%
    Original Balling Part C - Trace Elements (1 kg) - Tropic Marin
    On Sale 15%

    Original Balling Part C - Trace Elements (1 kg) - Tropic Marin

    Tropic Marin
    $20.99
    $17.84
    Tropic Marin® Original Balling Components are the three salts used in the Balling method to allow an independent dosage of calcium and carbonates adapted to each individual aquarium.The three part method adds calcium chloride dihydrate (part A)...
  • On Sale 25%
    Pharma Kalkwasser (Calcium Hydroxide) 4 lbs - Bulk Reef Supply
    On Sale 25%

    Pharma Kalkwasser (Calcium Hydroxide) 4 lbs - Bulk Reef Supply

    Bulk Reef Supply
    $33.99
    $25.49
    Ultra-pure Kalkwasser for Reef Tanks! BRS Pharma Kalkwasser is not your typical calcium hydroxide. It is made from an ultra-pure source that contains extremely low amounts of aluminum and compared to traditional kalkwasser you can actually see the...
  • Bacto Reef Blend (250 ml) Bacteria - Fauna Marin

    Bacto Reef Blend (250 ml) Bacteria - Fauna Marin

    Fauna Marin
    $30.02
    Fauna Marin Bacto Reef Blend bacteria system for marine aquarium is a special composition of halophilic and phototrophic bacteria cultures that quickly activates and stabilizes all relevant biological nutrient cycles in your aquarium. Our best Bacteria...
  • On Sale 12%
    Reef Foundation A Dry - Calcium (CA) (1 KG) Powder - Red Sea
    On Sale 12%

    Reef Foundation A Dry - Calcium (CA) (1 KG) Powder - Red Sea

    Red Sea
    $33.99
    $29.91
    Calcium+ Supplement Calcium and Strontium complex for balanced formation of the coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements...
  • On Sale 20%
    ReMag Magnesium Media for Calcium Reactors (2.2 lbs) -  Two Little Fishies
    On Sale 20%

    ReMag Magnesium Media for Calcium Reactors (2.2 lbs) - Two Little Fishies

    Two Little Fishies
    $25.24
    $20.19
    ReMag is a magnesium-rich natural stone sized to blend well with ReBorn and other calcium carbonate media for use in calcium reactors. ReMag makes maintaining the magnesium level in your reef a no-brainer. Simply use ReMag in a calcium reactor according...