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! Considerations for use: Tech I provides free iodine and iodide immediately, and a timed release system which continues to provide available iodide over many weeks, Test kits will not read the timed release iodide, and may not register the free iodine, Do not exceed the recommended dosage without testing, and do not exceed seawater level of either iodine or iodide if measuring with a kit, Carefully observe animals while using, If negative reactions are noted, discontinue use, and resume a week later at half dose, (Actually iodine/iodide testing is unnecessary, just dose as directed)If you plan to use Tech I Iodine supplement while ozone is in use, be careful, The ozone can release all of the iodine in TechòI at once, so carefully observe your animals on a daily basis, and discontinue use, if necessary, Tech I is designed for use by experienced hobbyists, who are able to judge negative reactions by inhabitants, If you are inexperienced or use ozone, and you want to be totally safe, use Concentrated Iodine Supplement instead of this product! Kent Marine Essential Elements and Coral-Vite should be used simultaneously with the Tech I to replace those minerals lost in protein skimming and filtration and used up by corals and other invertebrates, Calcium should be added via Kalkwasser Mix, Concentrated Liquid Calcium or Turbo Calcium, Tanks with heavy coral populations require additional strontium to that which is in the Coral-Vite, Use Strontium & Molybdenum Supplement or Turbo Strontium for this, Macro algae will require the Iron supplement, as well, Live corals require strong lighting of proper spectrum and immaculately clean systems, Regular water changes are encouraged, Use Kent Marine Superbuffer-dKH to control alkalinity and prevent pH swings, SKU: RPS13583