Did you do any research on crested gekcos?

They are tropical species, newts are temperate species who do not fare well with temps over 70F. They have practically nothing in common so I'm not sure where you got the impression you could mix them.

Housing fbt and rough skinned is not much better, both species are toxic to species outside their own. I would suggest doing a lot more research before you buy more animals.

If you have any questions feel free to contact me at otis07_@hotmail.com. I have kept all three species so feel free to ask questions if you have them.
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A room of herps.
www.freewebs.com/kapoktree