Oh, the terrarium is bright and humid(humidity always 60-80%) and it is mounted on the driftwood with rubberbands and spagnum moss. Also, I have a green anole(a small lizard) living with it. on the same piece of drift wood is a large bromeliad also mounted with rubberbands but the bromeliad has no problems and is perfectly healthy.

Is it getting enough light?

Yes it is very bright as the top of the plant is about 1.5 feet from a 100 watt heat lamp, so the cage is also 70-80 degrees farenheit. Since my first posting I have added a green tree frog, a gray tree frog, a small bullfrog, and some tadpoles(who live in the water area which helps the humidity). The ant plant seems to be doing a little bit better, but it lost one or two leaves today. I guess it just needed some "fertilizer",lol. Oh, and the dead leaves from the ant plant are rotting after they fall, so they are fertilizer,too :)

I found out what was wrong...ROT. Is there any way to help???

Maybe you could get a suggestion on the "pests and disease" forum. Good luck.