They were in with geckos? That would be bad for somebody, either the gecko drowning, getting toxic secretions from the newt, or the newt dying from the heat lamp that most geckos need.
Well, I have had store bought CFB's for many years now, I even bred them and raised the larvae to late juvenile stages. With all aquatic newts, you want the temps to be somewhat watched and to never let it go way up. (e.g. 85F, ahhhhh) If you keep them in the basement, in a climate controlled room/house, use frozen water bottles, or even a expensive chiller, they are great. Remember if you cannot provide the environment for the creature in question, then yes, move on to a different species.
Tigers are commonly found in most states, especially their larvae. They require room to grow though, so a larger tank is preferable. The only reason I didn't mention a tiger, was because it would have been redundant by my post.
Cataldo