I'm about to set up a dart frog tank and I came across this stuff. The bag says, "Schultz All Natural Green Moss" "Excellent liner for hanging wire baskets & terrariums"

My question is it really safe? Bags often lie. I picked a bag up, with the purpose of using it either for my frog tank or my plants. So either way it wouldn't go to waste.

To be honest, it looks like someone went out to their yard and ripped up a bunch of ****, dried it out and put it in a bag for me to buy. It was cheap ($1 for 4Qts), I won't be heart broken if I can't use it.

I would assume if I soaked it, it would be okay, but there are people FAR more experienced than me and I don't want to kill the little guy...or gal.