I dont want to sound rude but useing carnivorus is quite silly. I keep these plants and read many books on them they can easly eat a frog. Poison dart frogs are small and can be eaten by a venus fly trap very easly that is wat they are made to do so please do not use them in your tank although they are very nice but you can get plastic ones

This is just so you dont spend all your cash on a mint frog to feed a plant.