Technical Background
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.
The predominant form of iodine in seawater is iodide. The natural seawater concentration of all iodine species combined is approximately 0.06 ppm, classifying it as a minor element. Even in this small concentration, iodine is required for survival of fishes, crustaceans, macroalgae and kelp, and hermatypic invertebrates alike. Iodine binds rapidly with latent organic material and is passively removed by aggressive protein skimming and the use of organic-adsorption products such as activated carbon and specialty resins. The combined biological and chemical depletion of iodine necessitate that its concentration be monitored and the aquarium supplemented as needed. The rate at which iodine is extracted from the water is determined by the stocking density of reef-building livestock, type of lighting, and other biological, physical, and chemical conditions. Once the rate of iodine uptake in the aquarium has been determined, the proper dosing rate of this product can be easily calculated.
Instructions and Guidelines for use in the aquarium
Note: Lugol's has been manufactured in two strengths and was changed recently due to government regulations. The strength you have may be different than that below. Your label will reflect the strength you have. Determine the iodine concentration in the aquarium using an accurate test kit before supplementing. Each ml of Brightwell Aquatics Lugol’s will increase the concentration of iodine (“[I]”) in 1 US-gallon (3.785 L) of water by 12 ppm, or approximately 0.6 ppm per drop.
EZ Calculations for use in the aquarium: Multiply tank capacity in gallons x ppm increase desired x .07570 = ml of product to add. Example to raise the concentration of iodine in a 100 gallon aquarium by .02 ppm, the calculation is: 100 x .02 x .07570 = 0.15 ml. To get the number of drops required, multiply this number by 20, so this would be 0.15 ml * 20 = 3 drops. (a dropperful is 1 ml or 20 drops).
Instructions and Guidelines for use as a dip for new corals
Note: Lugol's has been manufactured in two strengths and was changed recently due to government regulations. The strength you have may be different than that below. Your label will reflect the strength you have. Read your bottle to determine the strength you have. The label on the outer package will give you the ppm that your product will raise a gallon of water. Draw one gallon of aquarium water from your aquarium and use the following calculation to determine how much Lugol's to add.
EZ Calculations for a Dip: 14.4 divided by the ppm per gallon on the label = ml to add to one gallon of tank water in your bucket. If your label says the Lugol's will raise 1 US gallon of water by 12 ppm, the calculation would be: 14.4 / 12 = 1.2 ml of Lugol's. So you would add 1.2 ml or a dropperful and then 20% of another dropperful to 1 gallon of tankwater that you placed in the bucket. That would also be 1 dropperful plus 4 drops. (a dropperful is 1 ml or 20 drops). Corals may be soaked for 10 to 12 minutes. SET A TIMER!
Caution: Keep out of reach of children. Not for human consumption. Contact poison control center if ingested.
Guaranteed Analysis
Iodine (min) 50,000 ppm
Ingredients
Purified water, Potassium Iodide, Iodine
Shipping
How is my order shipped and what does it cost?
Orders are shipped either by Courier [currently FedEX Ground] or Postal Service --- the choice is yours!
For delivery by Courier, you pay the actual charges based on a 1 kG package [2.2 lbs] shipped via ground service, plus a nominal $1.00 service charge to cover the cost of insurance and packing materials. We pay any additional charges.
For Postal Service (your best value), shipping on orders under $100.00 is $13.95 to most locations in Canada, exceptions noted below. For orders between $100.00 and $150.00 the rate is $9.95, for orders between $150.00 and $200.00 the rate is just $4.95 and for orders over $200.00 shipping is FREE. The more you order the more you save! The delivery standard for this service is between 1 to 7 business days between all major centers.
NOTE: Additional Shipping Charges apply to orders being shipped to the NWT, YK, NU and some rural or remote locations in Canada as well as on over sized or heavy items indicated by the the - Additional Shipping symbol.
When will my order be shipped?
On weekdays, in-stock merchandise is shipped the same day if received by 2:00 pm EST. Orders received after that, or on weekends or holidays, are shipped the next business day.
Do you ship to the US or to other International destinations?
Currently we are only shipping within Canada.
Returns
What if I want to return an item?
Should you find it necessary to return an item, please call us first. All returns should be properly packaged to avoid damage and should include all original boxes and paperwork to receive a refund, replacement or credit. Shipping fees are not refundable, unless, of course, you are returning defective merchandise or merchandise we sent in error.
What do I do if a product breaks or doesn't preform as promised?
Keep all warranties and owner's manuals you receive with your merchandise. In the event an item becomes defective or just doesn't live up to your expectations, please refer to the warranty information you received for proper handling procedures.
![Brightwell Lugol's Solution [30 mL]](/PH820/skus/BW/BW-Lugols.jpeg "Brightwell Lugol's Solution [30 mL]")