If the opening of the tropical pitcher plant's pitchers are not so big that the frog could fall in them, I don't think it would be a problem. And red eyed tree frogs get more on the big side, so as long as you have a big enough tank and space, I don't see how the two of them wouldn't get along. You might have to give extra live bugs to the pitcher plant because the frog might eat most of the bugs you put in the tank.

Just get a smaller, slow growing nepenthes. Most of them get too big for a terrarium. The frog should be fine.

ok, if it does get to big i can just trim it tho...i found some neat ones that i think should work..thanx