Hi Kevin, I have ornamental moss's living nicely in my enclosures. They last for over a year and the only reason I throw them out is because I want the frogs to fresh new ones and I can get it easily. I have it sitting on sphagnum moss which sits on rocks just out of the water (not soaking in water). During the year the temp would range between 70-80 F. I also spray the enclosure maybe twice a week. It will also do well outdoors as I have it in my Froggery which gets as low as -6 C. I leave it over winter but water it often in the summer. I think it can stand most temps but it wont do well if its too wet.
Here is a photo of the of moss I would use in one enclosure. The sphagnum is the lighter green and the rest sits on top. Hope this helps

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