im against iodine myself. some people dose it in their tanks without even testing for it, which i think is just begging for trouble, but even if you do test for it... well it doesnt matter a whole lot imo. iodine is a very difficult ion to test for and unless you're using laboratory grade tests, our little hobby test kits are just too unreliable.
that and it can be quite harmful to marine arthropods. high levels of iodine can really screw up their molting cycle and if you raise levels of iodine right after a molt, it can quickly become toxic to them then. the salt we use mixed with the food we feed should provide plenty of iodine to whatever is in the tank.
I can understand quick iodine dips to kill nudis off of zoos when you initially put the frag in the tank, but regular dosing? ehhh, not something ill go for.
jmo. i know some people swear by the stuff.
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