What kind of live plants are safe to put in an iguanas aquarium

We want to put a couple of plants (possibly a Venus Fly Trap and something else) in our iguanas aqarium. What is safe what is not. Same for our new corn snake. Are there any safe plants to put in his aquarium. A;so how do you tell the sex of snakes and iguans?

Ok well as other people have stated, get plastic plants. Thats all that i have with mine and they dont try to eat them and they are easy to clean. Live plants are ok, but you have the chance that the Iguanas will eat them, and then there is the risk of parisites. not only on the plant itself but in the soil that the plant is in. IF you do decide to go with plants do your research very carefully, and if and when you do get the plants, you have to change the soil that they are in. if you go to a local nursary they have clean soil, tell them what it is for and they can get you some. but your best bet is to spend the money on the plastic plants, they may be more expencive now, but can save money later on down the road. Becasue you dont have to water them, or give them the correct light so that photosynthisis can occur, also if your iguanas eat them you wont have to replace them. At first you will want to watch them to make sure that they dont try to eat the plastic plants but more then likly they wont even touch them. Now sexing an iguana can be difficult if they are still hatchlings and even some juvininles are difficult to sex. But the most distinct feature are the Femoral Pores on the under side of their hind legs. The Females will be smaller and harder to see, where as the males are large and you can see them very well. The next thing you can look for is the Joules. Females joules wont be quite as large as the males. The joules are locted at the rear or the jaw bone. on males you will be able to see the joules without looking for them. as they will stick out quite a bit.