I went to the pet store and bought 3 firebelly newts and when i got home i noticed 2 had there limbs injured? i'm guessing since when i saw them in the pet store they were housed with paddle tail newts and must have gotten bitten by them? but now i don't know what to do? i don't know how to heal them? i want them to live because there hard to come by where i live. are these newts strong newts and overcome injuries?