http://www.zoomed.com/db/products/En...D=2&SearchID=5
Says, specifically:
The first instant terrarium water conditioner. Great for reptile water bowls, chameleon drip water systems, amphibian enclosures, and aquatic turtle tanks.
I do not think I would let my snakes drink it.
I have aquifer well water but if I didn't, I'd buy them bottled spring water.
At my local Wal*Mart, it's .88 a gallon.
I use it to top off my 40 gallon aquarium now and then so that I have spare empty bottles for carrying my tap water from the kitchen, later.