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Additives by Type: Aquarium Iodine
Aquarium iodine supplements replenish the Iodine that is rapidly removed by plant and animal growth, protein skimming, activated carbon, and ozone use. Iodine is required for healthy growth and colorful pigmentation in soft and stony corals, pink coralline algae and macro algae, and many invertebrates found in captive marine systems.
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Brightwell Aquatics Iodion Liquid Iodide Supplement, 250 ml
Brightwell Aquatics Iodion Liquid Iodide Supplement, 250 ml
Usually Ships in 1 to 2 Business Days
Our Price: $5.98 In Stock!

  • Highly-concentrated, extended activity iodide solution
  • Provides iodide, which is important to hermatypic corals and other invertebrates harboring zooxanthellae, macroalgae, and also to the health of fishes
  • Stronger than most competing products
  • The nature of iodide sources used makes Iodion more effective than standard iodide-solutions
  • Suitable for use by aquarium hobbyists of all skill and experience levels
  • Composed of purified water and ultra-high purity materials
  • Formulated by a marine scientist
  • Basic Instructions: Shake product well before using. Add 5 ml (1 capful) of product per 50 US-gallons of aquarium water every two- to three-days or as needed to maintain the iodine concentration within a range of 0.04 - 0.06 ppm. When used in this fashion, 250 ml treats up to 2,500 US-gallons (9,464 L).
Brightwell Aquatics Iodion Liquid Iodide Supplement, 500 ml
Brightwell Aquatics Iodion Liquid Iodide Supplement, 500 ml
Usually Ships in 1 to 2 Business Days
Our Price: $10.51 In Stock!

  • Highly-concentrated, extended activity iodide solution
  • Provides iodide, which is important to hermatypic corals and other invertebrates harboring zooxanthellae, macroalgae, and also to the health of fishes
  • Stronger than most competing products
  • The nature of iodide sources used makes Iodion more effective than standard iodide-solutions
  • Suitable for use by aquarium hobbyists of all skill and experience levels
  • Composed of purified water and ultra-high purity materials
  • Formulated by a marine scientist
  • Basic Instructions: Shake product well before using. Add 5 ml (1 capful) of product per 50 US-gallons of aquarium water every two- to three-days or as needed to maintain the iodine concentration within a range of 0.04 - 0.06 ppm. When used in this fashion, 500 ml treats up to 5,000 US-gallons (18,928 L).
Brightwell Aquatics Lugol's Solution, 30 ml
Brightwell Aquatics Lugol's Solution, 30 ml
Usually Ships in 1 to 2 Business Days
Our Price: $11.30 In Stock!

Brightwell Aquatics Lugol’s is an extremely powerful iodine solution. It should only be used by advanced reef aquarists to dose iodine as well as to create a dip for corals and their allies.
The importance of iodine in a reef aquarium cannot be overstated. Presence of iodine is vital to hermatypic invertebrates (i.e., corals, clams, and their allies that harbor zooxanthellae) because it is used to detoxify excess oxygen produced by zooxanthellae. This oxygen irritates sensitive tissue. Corals and clams that appear to shrivel or close under intense lighting are attempting to shade their zooxanthellae crop to reduce the rate of oxygen production. Iodine (as the iodide ion) essentially bonds with oxygen to form non-toxic iodate, relieving the need to shield zooxanthellae and enabling the host organism to open fully.
Brightwell Aquatics Lugol's Solution, 60 ml
Brightwell Aquatics Lugol's Solution, 60 ml
Usually Ships in 1 to 2 Business Days
Our Price: $16.17 In Stock!

Brightwell Aquatics Lugol’s is an extremely powerful iodine solution. It should only be used by advanced reef aquarists to dose iodine as well as to create a dip for corals and their allies.
The importance of iodine in a reef aquarium cannot be overstated. Presence of iodine is vital to hermatypic invertebrates (i.e., corals, clams, and their allies that harbor zooxanthellae) because it is used to detoxify excess oxygen produced by zooxanthellae. This oxygen irritates sensitive tissue. Corals and clams that appear to shrivel or close under intense lighting are attempting to shade their zooxanthellae crop to reduce the rate of oxygen production. Iodine (as the iodide ion) essentially bonds with oxygen to form non-toxic iodate, relieving the need to shield zooxanthellae and enabling the host organism to open fully.
E.S.V. 1 gallon Potassium Iodide
E.S.V. Potassium Iodide 1 gallon
Usually Ships in 1 to 2 Business Days
Regular Price $47.99
Clearance Price $35.00
You Save $12.99! In Stock!

The E.S.V. Potassium Iodide Solution is a very pure form of iodide. Iodide is an important micro-nutrient for many marine plants. It has also been suggested that iodide may play an important role in enhancing a coral's ability to adapt to rapid changes in light intensity and spectrum. The recommended dosage is 1 drop per gallon per week (1 ml per 20 gallons per week).
E.S.V. 16 oz Potassium Iodide
E.S.V. Potassium Iodide 16 oz
Usually Ships in 1 to 2 Business Days
Our Price: $8.45 In Stock!

The E.S.V. Potassium Iodide Solution is a very pure form of iodide. Iodide is an important micro-nutrient for many marine plants. It has also been suggested that iodide may play an important role in enhancing a coral's ability to adapt to rapid changes in light intensity and spectrum. The recommended dosage is 1 drop per gallon per week (1 ml per 20 gallons per week).
E.S.V. 8 oz Potassium Iodide
E.S.V. Potassium Iodide 8 oz
Usually Ships in 1 to 2 Business Days
Our Price: $4.99 In Stock!

The E.S.V. Potassium Iodide Solution is a very pure form of iodide. Iodide is an important micro-nutrient for many marine plants. It has also been suggested that iodide may play an important role in enhancing a coral's ability to adapt to rapid changes in light intensity and spectrum. The recommended dosage is 1 drop per gallon per week (1 ml per 20 gallons per week).
Inland Seas Iodine Supplement 128 oz
Inland Seas Iodine Supplement 128 oz
Usually Ships in 1 to 2 Business Days
Our Price: $31.75
Sale Price $25.40
You Save $6.35! In Stock!

Inland Seas Iodine Supplement is a potassium iodide solution for hobbyists wishing to add individual trace elements.
Kent Marine Lugol's Solution Iodine 1 oz
Kent Marine Lugol's Solution Iodine 1 oz
Usually Ships in 1 to 2 Business Days
Our Price: $10.24 In Stock!

Kent Marine Lugol's Solution provides a strong source of free iodine and iodide to reef inhabitants and macroalgae.  Although it's very effective when used with stony corals, systems containing xenia and soft corals benefit the most from the use of Lugol's Solution.
  • Used as a dip for stony and soft or leather corals, Lugol's will help rid the animals of unwanted parasites and harmful bacteria
  • This product helps foster improved coloration and prevents bleaching of all corals due to changes in light intensity, and enhances coral polyp expansion
  • Kent Lugol's Solution provides a key nutrient for marine invertebrates and fishes, and contains no phosphate, nitrate, gluconate, or other sugars
Kent Marine Tech I Iodine 16 oz
Kent Marine Tech I Iodine 16 oz
Usually Ships in 1 to 2 Business Days
Our Price: $9.49 In Stock!

Although present in salt mixes, iodine is rapidly used up in the system, and removed through protein skimming, ozone and filtration. Whereas other iodine supplements only last a few days, Tech I Iodine supplement provides iodine in a unique triple release system for sustained availability to invertebrates over weeks of time.
  • Provides free iodine, iodide and timed release iodide
  • Hobbyists report reproduction in corals that have not previously reproduced and increased growth rates in sensitive hard and soft corals. Keeping Xenia is much easier
  • Corals open fuller and grow faster than ever before
  • Assists hard corals and helps prevent bleaching
Tech I Kent Marine Iodine 8 oz
Kent Marine Tech I Iodine 8 oz
Usually Ships in 1 to 2 Business Days
Our Price: $5.18 In Stock!

Although present in salt mixes, iodine is rapidly used up in the system, and removed through protein skimming, ozone and filtration. Whereas other iodine supplements only last a few days, the Tech I Kent Marine Iodine supplement provides iodine in a unique triple release system for sustained availability to invertebrates over weeks of time.
  • Provides free iodine, iodide and timed release iodide
  • Hobbyists report reproduction in corals that have not previously reproduced and increased growth rates in sensitive hard and soft corals. Keeping Xenia is much easier
  • Corals open fuller and grow faster than ever before
  • Assists hard corals and helps prevent bleaching