Kent Marine Tech•I is the most significant breakthrough in marine additive technology in the last five years! 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! Kent Marine Tech•I is an exciting product! It will revolutionize the keeping of difficult marine invertebrates!