"Frog moss"?

[rosaphile]

Thanks, that does help! I found the stuff I saw at Petsmart online:
T-Rex Frog Moss - T-Rex Forest Accents | Josh's Frogs

Is that what you use? I thought it looked a lot less "shaggy" than the sphagnum moss.

I will definitely try some rocks in there too, thanks for the suggestion!

[DonLisk]

Yes you can use collected Magnolia leaves and you just have to boil them before use.