no we ain't takin auto additives.

I picked up some inverts, clean up crew over a week ago..it came with peppermint shrimp and coral banded shrimp.
the lil peppermint shrimp disappeared after I acclimated them..this weekend I noticed a couple empty shell/carapace..then later they crawled out of a cave to eat..bright newish shells..
now the question..what if anything do you add to make sure the shrimp have the proper trace elements? I have heard Iodine..I keep the calcium in the tank between 480 -500.
pH 8.3 specific gravity 1.024+
I picked up some inverts, clean up crew over a week ago..it came with peppermint shrimp and coral banded shrimp.
the lil peppermint shrimp disappeared after I acclimated them..this weekend I noticed a couple empty shell/carapace..then later they crawled out of a cave to eat..bright newish shells..
now the question..what if anything do you add to make sure the shrimp have the proper trace elements? I have heard Iodine..I keep the calcium in the tank between 480 -500.
pH 8.3 specific gravity 1.024+