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Additives: Brightwell Aquatics

Brightwell Aquatics products are formulated by a published marine scientist who has been a passionate aquarium hobbyist for over 25 years. The goal in formulation is to always utilize the highest purity ingredients in concentrations most useful to hobbyists. With few exceptions, the raw materials used in Brightwell Aquatics products are over 99.9% pure. All water used in Brightwell Aquatics products is filtered through a multi-stage, high-removal rate purification system. With the exception of trace elements, none of the Brightwell Aquatics products use chelated raw materials. All Brightwell Aquatics products are lot numbered for quality control and customer service.
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Brightwell Aquatics Alkalin8.3 KH Buffer, 250 ml
Brightwell Aquatics Alkalin8.3 KH Buffer, 250 ml
Our Price: $5.40
In Stock

  • Brightwell Aquatics Alkalin8.3 KH Buffer, 250 ml is a highly-effective alkalinity(KH)-increasing (”buffer”) solution
  • Helps increase pH stability in an aquarium by raising the alkalinity
  • Provides a source of carbonates, which make up the majority by
    weight of aragonite, the mineral secreted by reef-building organisms
    as skeletal material
  • Continued addition raises pH until 8.3 is reached, at which point
    the pH remains unchanged and the alkalinity alone increases
  • Over 50% stronger than most competing products
  • Free of phosphate, silicate, and organic material
  • Formulated by a marine scientist
Brightwell Aquatics Alkalin8.3 KH Buffer, 500 ml
Brightwell Aquatics Alkalin8.3 KH Buffer, 500 ml
Our Price: $7.80
In Stock

  • Brightwell Aquatics Alkalin8.3 KH Buffer, 500 ml is a highly-effective alkalinity(KH)-increasing (”buffer”) solution
  • Helps increase pH stability in an aquarium by raising the alkalinity
  • Provides a source of carbonates, which make up the majority by
    weight of aragonite, the mineral secreted by reef-building organisms
    as skeletal material
  • Continued addition raises pH until 8.3 is reached, at which point
    the pH remains unchanged and the alkalinity alone increases
  • Over 50% stronger than most competing products
  • Free of phosphate, silicate, and organic material
  • Formulated by a marine scientist
Brightwell Aquatics Alkalin8.3-P KH Buffer, 1000 grams
Brightwell Aquatics Alkalin8.3-P KH Buffer, 1000 grams
Our Price: $15.80
In Stock

  • Brightwell Aquatics Alkalin8.3-P KH Buffer is a highly-effective alkalinity-increasing (”buffer”) powdered
    blend for all marine and reef aquaria
  • Helps increase pH stability in an aquarium by raising the
    alkalinity; continued addition raises pH until 8.3 is reached, at
    which point the pH remains unchanged and the alkalinity
    alone increases
  • Provides a source of carbonates, which make up the majority
    by weight of aragonite, the mineral secreted by reef-building
    organisms as skeletal material
  • Formulated by a marine scientist
Brightwell Aquatics Alkalin8.3-P KH Buffer, 250 grams
Brightwell Aquatics Alkalin8.3-P KH Buffer, 250 grams
Our Price: $5.80
In Stock



  • Brightwell Aquatics Alkalin8.3-P KH Buffer, 250 grams is a highly-effective alkalinity-increasing (”buffer”) powdered
    blend for all marine and reef aquaria
  • Helps increase pH stability in an aquarium by raising the
    alkalinity; continued addition raises pH until 8.3 is reached, at
    which point the pH remains unchanged and the alkalinity
    alone increases
  • Provides a source of carbonates, which make up the majority
    by weight of aragonite, the mineral secreted by reef-building
    organisms as skeletal material
  • Formulated by a marine scientist
Brightwell Aquatics Alkalin8.3-P KH Buffer, 500 grams
Brightwell Aquatics Alkalin8.3-P KH Buffer, 500 grams
Our Price: $9.80
In Stock

  • Brightwell Aquatics Alkalin8.3-P KH Buffer, 500 grams is a highly-effective alkalinity-increasing (”buffer”) powdered
    blend for all marine and reef aquaria
  • Helps increase pH stability in an aquarium by raising the
    alkalinity; continued addition raises pH until 8.3 is reached, at
    which point the pH remains unchanged and the alkalinity
    alone increases
  • Provides a source of carbonates, which make up the majority
    by weight of aragonite, the mineral secreted by reef-building
    organisms as skeletal material
  • Formulated by a marine scientist
Brightwell Aquatics Alkalin8.3-P, 4 kg
Brightwell Aquatics Alkalin8.3-P, 4 kg
Our Price: $51.51
In Stock


  • Brightwell Aquatics Alkalin8.3-P, 4 kg, is a KH buffer powder for all marine fish and reef aquaria
  • Highly-effective alkalinity-increasing (”buffer”) powdered blend.
  • Helps increase pH stability in an aquarium by raising the alkalinity; continued addition raises
    pH until 8.3 is reached, at which point the pH remains unchanged and the alkalinity
    alone increases.
  • Provides a source of carbonates, which make up the majority by weight of aragonite, the
    mineral secreted by reef-building organisms as skeletal material.
Brightwell Aquatics AminOmega Hufa Supplement, 125ML
Brightwell Aquatics AminOmega Hufa Supplement, 125 ml
Our Price: $13.40
In Stock

  • Provides marine sources of amino acids and omega-3 and -6 highly unsaturated fatty acids (HUFA)
  • Increases the nutritional value of foods for marine fishes and invertebrates, particularly for fishes that show signs of head and lateral line erosion
  • May be used to fortify prepared and live foods
  • Contains no shark-derived ingredients
  • Composed of a blend of unique marine fish and crustacean sources of proteins and essential fatty acids, as well as important vitamins
  • Does not require refrigeration
  • Formulated by a marine scientist
Brightwell Aquatics AminOmega Hufa Supplement, 60ML
Brightwell Aquatics AminOmega Hufa Supplement, 60 ml
Our Price: $7.70
In Stock

  • Provides marine sources of amino acids and omega-3 and -6 highly unsaturated fatty acids (HUFA)
  • Increases the nutritional value of foods for marine fishes and invertebrates, particularly for fishes that show signs of head and lateral line erosion
  • May be used to fortify prepared and live foods
  • Contains no shark-derived ingredients
  • Composed of a blend of unique marine fish and crustacean sources of proteins and essential fatty acids, as well as important vitamins
  • Does not require refrigeration
  • Formulated by a marine scientist
Brightwell Aquatics AngeLixir Food Soak, 1 liter
Brightwell Aquatics AngeLixir Food Soak, 1 liter
Our Price: $116.40
In Stock


  • Complex of free-form amino acids in the same ratios found in tissues of sponges
  • Utilizes natural attractants and marine-derived proteins to improve feeding response and increase protein percentage of fish foods, respectively
  • Beneficial to all fishes whose diets are in large part composed of sponges, including angelfishes, butterflyfishes, Moorish Idols, and their respective allies
  • Free form amino acids:

    1. Encourage vibrant coloration
    2. Provide the building blocks of protein in ideal ratios to encourage the formation of new tissue, speeding up growth rates
    3. Encourage new tissue growth to aid in recovery from wounds incurred during aggressive encounters with tankmates or during spawning periods

  • Formulated based upon sponge tissue analysis and marine finfish culture
  • Does not require refrigeration
Brightwell Aquatics AngeLixir Food Soak, 125 ml
Brightwell Aquatics AngeLixir Food Soak, 125 ml
Our Price: $19.40
In Stock


  • Complex of free-form amino acids in the same ratios found in tissues of sponges
  • Utilizes natural attractants and marine-derived proteins to improve feeding response and increase protein percentage of fish foods, respectively
  • Beneficial to all fishes whose diets are in large part composed of sponges, including angelfishes, butterflyfishes, Moorish Idols, and their respective allies
  • Free form amino acids:

    1. Encourage vibrant coloration
    2. Provide the building blocks of protein in ideal ratios to encourage the formation of new tissue, speeding up growth rates
    3. Encourage new tissue growth to aid in recovery from wounds incurred during aggressive encounters with tankmates or during spawning periods

  • Formulated based upon sponge tissue analysis and marine finfish culture
  • Does not require refrigeration
Brightwell Aquatics AngeLixir Food Soak, 250 ml
Brightwell Aquatics AngeLixir Food Soak, 250 ml
Our Price: $27.20
In Stock


  • Complex of free-form amino acids in the same ratios found in tissues of sponges
  • Utilizes natural attractants and marine-derived proteins to improve feeding response and increase protein percentage of fish foods, respectively
  • Beneficial to all fishes whose diets are in large part composed of sponges, including angelfishes, butterflyfishes, Moorish Idols, and their respective allies
  • Free form amino acids:

    1. Encourage vibrant coloration
    2. Provide the building blocks of protein in ideal ratios to encourage the formation of new tissue, speeding up growth rates
    3. Encourage new tissue growth to aid in recovery from wounds incurred during aggressive encounters with tankmates or during spawning periods

  • Formulated based upon sponge tissue analysis and marine finfish culture
  • Does not require refrigeration
Brightwell Aquatics BlackWater Conditioner for FW Aquaria, 250 ml
Brightwell Aquatics BlackWater Conditioner for FW Aquaria, 250 ml
Our Price: $5.70
In Stock


  • Establishes similar water conditions to those found in blackwater rivers, many of which are home to important fishes and plants
  • May be used to help simulate the onset of the rainy season for encouragement of fish spawning
  • Provides humic substances (humic and fluvic acid), complex bio-organic molecules known to increase the availability of important nutrients (such as iron, calcium, magnesium, molybdenum, copper, maganese, zinc, cobalt and nickel) to plants, potentially enhancing the effectiveness of plant nutrient solutions in aquaria
  • Formulated using extensive research on aquatic plant nutrient requirements and riverine water chemistry
Brightwell Aquatics BlackWater Conditioner for FW Aquaria, 500 ml
Brightwell Aquatics BlackWater Conditioner for FW Aquaria, 500 ml
Our Price: $9.20
In Stock


  • Establishes similar water conditions to those found in blackwater rivers, many of which are home to important fishes and plants
  • May be used to help simulate the onset of the rainy season for encouragement of fish spawning
  • Provides humic substances (humic and fluvic acid), complex bio-organic molecules known to increase the availability of important nutrients (such as iron, calcium, magnesium, molybdenum, copper, maganese, zinc, cobalt and nickel) to plants, potentially enhancing the effectiveness of plant nutrient solutions in aquaria
  • Formulated using extensive research on aquatic plant nutrient requirements and riverine water chemistry
Brightwell Aquatics Calcion Liquid Calcium Supplement, 2 liters
Brightwell Aquatics Calcion Liquid Calcium Supplement, 2 liters
Our Price: $31.00
In Stock

  • Highly-concentrated ionic calcium solution
  • Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth
  • Is ionic rather than chelated, and contains no unwanted organic material such as EDTA, gluconate, or polygluconate
  • Over 50% stronger than most competing products
  • Free of phosphate, silicate, and organic material
  • Formulated by a marine scientist
Brightwell Aquatics Calcion Liquid Calcium Supplement, 250 ml
Brightwell Aquatics Calcion Liquid Calcium Supplement, 250 ml
Our Price: $6.30
In Stock

  • Highly-concentrated ionic calcium solution
  • Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth
  • Is ionic rather than chelated, and contains no unwanted organic material such as EDTA, gluconate, or polygluconate
  • Over 50% stronger than most competing products
  • Free of phosphate, silicate, and organic material
  • Formulated by a marine scientist
Brightwell Aquatics Calcion Liquid Calcium Supplement, 500 ml
Brightwell Aquatics Calcion Liquid Calcium Supplement, 500 ml
Our Price: $10.90
In Stock

  • Highly-concentrated ionic calcium solution
  • Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth
  • Is ionic rather than chelated, and contains no unwanted organic material such as EDTA, gluconate, or polygluconate
  • Over 50% stronger than most competing products
  • Free of phosphate, silicate, and organic material
  • Formulated by a marine scientist
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 200 grams
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 200 grams
Our Price: $8.80
(Out of Stock)

  • High-purity powdered calcium
  • Increases the concentration of calcium in marine aquarium
    water to provide corals and other reef-building invertebrates
    with one of the most important elements required for growth
  • Stronger and more economical than liquid calcium solutions;
    created for hobbyists maintaining multiple reef aquaria
  • Formulated by a marine scientist
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 400 grams
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 400 grams
Our Price: $13.70
In Stock

  • High-purity powdered calcium
  • Increases the concentration of calcium in marine aquarium
    water to provide corals and other reef-building invertebrates
    with one of the most important elements required for growth
  • Stronger and more economical than liquid calcium solutions;
    created for hobbyists maintaining multiple reef aquaria
  • Formulated by a marine scientist
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 800 grams
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 800 grams
Our Price: $18.00
In Stock

  • High-purity powdered calcium
  • Increases the concentration of calcium in marine aquarium
    water to provide corals and other reef-building invertebrates
    with one of the most important elements required for growth
  • Stronger and more economical than liquid calcium solutions;
    created for hobbyists maintaining multiple reef aquaria
  • Formulated by a marine scientist
Brightwell Aquatics Clarifi-FW, 250 ml
Brightwell Aquatics Clarifi-FW, 250 ml
Our Price: $5.80
In Stock

Advanced Clarifier for all Freshwater and Planted Aquaria

  • Flocculant for improving water clarity in freshwater aquaria; helps eliminate cloudy water.
  • Binds particulate material suspended in aquarium water, enabling removal from the
    system by means of mechanical filtration.
  • Specifically formulated for use in freshwater aquaria; not to be used in marine aquaria.
  • Safe for use with all manner of freshwater fishes, plants, and invertebrates.