Lugol's

• An extremely strong source of iodide and iodine, formulated and intended for use by advanced hobbyist with sufficient experience to properly apply the product to their aquaria.
• Lugol's is of greatest benefit to hobbyist keeping heavily-stocked reef aquaria that pose significant iodine-demands as a result of lighting and other environmental and chemical factors.
• Stronger than most competing products.
• Formulated by a marine scientist.
• Available in 30 ml, 60 ml, and 125 ml sizes.

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 essentially bonds with oxygen to form non-toxic iodate, relieving the need to shield zooxanthellae and enabling the host organism to open fully.