Hello and welcome
Some bromeliads have rough or spiny edges. The pokey ones are not recommended for red eyed tree frogs. The smooth edged broms are fine.
Snake plants are safe. But they enjoy only slightly moist soil and will rot if continually wet. You can plant them up higher in well-drained areas. I haven't had luck with them long term with the high humidity and frequent misting.
I'll make you a list of good tree frog plants in a bit. I was just taking a break from critter chores and thought I'd read a few posts. I'll make a list after my turtles' water change

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