HCA: Hermit Crab Association

I HAVE NOT given this to my crabs yet. I found a caseload of bottled water in the basement (different brand than I am currently using). The ingredients say 'water is purified using reverse osmosis or distilation and enhanced with balance of miners for taste. Contains: purified water, calcium chloride, Sodium Bicarbonate, and magnesium sulfate;. Are any of these ingredients detrimental to the hermies?

THANK YOU!

Yea, magnesium sulfate is at least. Supposely it makes water "taste better" for humans so that's why they add it...I have never understood connoisseurs of water. I used to give my crabbies Dasani before I realized that. You'll always have some naturally occurring minerals before bottling, but I wouldn't give them anything with minerals purposely added.