LUGOL'S SOLUTION

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. Easy 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).

CORAL DIP INSTRUCTIONS

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. 

Easy 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 tank water 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.