Calcium & Iodine, hurt fish?

wildbunch

Member
Will adding calcium and Iodine to quickly hurt fish? I have a 175 gallon tank with a leather and 35 lbs. of live rock.
I add turbo calcium (3 heaping tablespoons) every week, plus 2 tablespoons of iodine. Both from Kent Marine.
I don't want to hurt my juv. emporer, naso tang, or kole tang.
I am trying to get the live rock to spread, but am too lazy to test for calcium levels and don't have an iodine testing kit.
I also add essential elements once every 3 weeks which also contains iodine.
What do you think.
 
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