Iodine
PJS Element Pack Iodide
5.00
Iodine
Iodine (I) atomic number 53, PJS considers it to be a Minor element as it plays a crucial role in the biological processes of corals, is used by other reef organisms and is below 1ppm in seawater. In the industry it is considered a trace element, we need to fix that. Iodine belongs to the diatomic non-metal group and is naturally found in seawater. In reef aquariums iodine in the form of iodide must be maintained at proper levels it is critical for healthy coral growth and color, is necessary for healthy invertebrates and their ability to molt. Iodine is one of the first elements that is specifically for biological process in the reef tank. Supplementation will be necessary, especially in heavily stocked tanks.
Iodine Key Roles
Biological Processes:
Iodine is part of the metabolic process of coral for tissue repair and growth. I feel it is also aiding in UV protection. Iodine is used at the cellular level to function and the transfer of nutrients within cells.
Crucial for preventing coral damage, repair and promoting vibrant colors.
Detoxification of Oxygen produced by zooxanthellae that live in corals.
Enhanced Coral Coloration:
Iodine plays a role in pigment synthesis, enhancing more vibrant tissue colorations in corals and critters
Crucial in producing enzymes for photosynthesis, enhancing the vibrant fluorescent colors often seen in corals.
Protection Against Parasites:
Iodine is used by corals for tissue growth and repair, aiding in defense to protect coral tissue from predators and parasites.
Skeletal Structure:
Soft corals, gorgonians, clams and Inverts all utilize iodine for skeletal / structure formation.
Iodine Levels
Natural Seawater Levels:
Iodine levels in natural seawater are typically .06 parts per million (ppm).
Target Aquarium Levels:
Many reef aquarists aim to maintain iodine at natural seawater levels.
PJS recommends aim for a iodine concentration of .07-.1 mg/L.
Consumption Rate:
Fast
Iodine Testing
ALWAYS test iodine levels in your reef aquarium before supplementing to determine if dosing is needed to avoid overdosing.
Testing:
Regularly test iodine levels using a reliable test kit or by sending water samples for ICP testing
Iodine Dosing
Start slowly by beginning with a low, gradual dose over many days avoiding any sudden shifts in water chemistry and monitor the effects.
Methods:
Iodine can be dosed via liquid additives.
Iodide usually in the form of Potassium Iodide is recommended allowing for immediate bioavailability.
Consider Advanced Methods:
Dosing stock solutions with pumps and continuous drip systems can be used to maintain precise iodine levels.
Observation Dosing – watch your corals closely after each day of dosing a set amount, adjusting weekly to peak.
Considerations
Overdosing iodine can become toxic to reef inhabitants. Overdosing iodine leads to coral bleaching, tissue recession, and death of invertebrates. Iodine is used by everything at every level, so its presence is essential and critical for overall reef health. Low iodine levels lead to bleaching, poor coloration, reduced tissue growth, and week skeletal structure. Iodine in my experience entices corals tissue expansion. Everything consumes iodine is the reef tank, filters, precipitation, skimming, algae, animals, everything. Iodine is stable in seawater, but toxic at elevated levels, in sea water it changes slowly to iodide which is the good stuff for everything and is consumed quickly. With the intense lighting we use, iodine is essential for prevent bleaching. Using Potassium Iodide as a supplement is utilized best, this will require regular, consistent doing to maintain levels.