Only carnivorous plants that you're going to be able to keep with darts are butterworts and lowland elevation pitcher plants of the genus Nepenthes. I have N. alata, N. ampullaria and N. gracillis, and they all do well. Stay away from pitcher plants of the genus Sarracenia, they need a long dormancy period of cold weather to produce pitchers, and most of them get too big anyway. Also stay away from venus flytraps as not only do they also need a similar dormancy period of cold temps, the frogs will stomp all over them, triggering the traps and killing them.