Originally Posted by
Instar
Inno, no contest there. Iodine does do that. And no contest with the strontium either. Adding it is a waste of time.
However, iodine is necessary as a trace, not as a load or in too high an amount. The federal government has mandated iodine in your salt for decades to prevent deficiencies. This is well known amoung my generation. And, its well known amoung people who raise shrimp and shelfish. Shrimp do not molt when fed. They do molt when the appropriate amount of iodine is in solution. If you go from 0.0 to 0.2, or 0.2 to 0.4 you will see it happen. Same thing with a water change. If its not necessary, then why is it measurable in all freshly mixed sea water mixes? It gets used, thats why it ends up 0. Its also a great oxidizer. If you run long enough at 0.0 iodine in solution in your tank water, things will die and your fish will live on because they get it bonded with their food. That kind is not soluable and not usable to all the reefs animals. Notice "despite the long answer" he completely avoids the iodine part. I don't have nor have I seen any iodine soaked or saturated foods. That would be like a death wish. Perhaps he had too much in one tank. Iodine test kits are notoriously poor at proper recovery. The bottom line is that a trace of soluable iodine is necessary.
You may not have to add phyto if you grow enough naturally. They are filter feeders and in tanks that don't produce enough, you do have to add. What is their actual life span when phyto is used as a supliment vs not using any?
You use tap water? I just killed a bunch of stuff trying that. What part of the country do you live in?
The post doesn't necessarily state that Iodine is not present, but that it is not necessary to add in excess per manufacturer's directions.
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