I only have experience with C. Orientalis, Chinese fire-bellied newts, and they have thrived and are currently reproducing at an alarming rate despite being separated awhile ago! If they make it through metamorph, I will be donating them to a loving home if you're interested! I have four 3 mo. old larvae, then about 30 others at varying ages including newly hatched yesterday. I also have eggs and donated some to a friend here this week. It's an amazing process to watch the egg develop and the larva emerge, grow front legs, then back, etc.
I've found they do well with a low flow filter (I only use mine a little each day) which is optional and cool water. Our house is cool as we live in S. Florida. I can't help you with other species but my sons and I have really enjoyed our newts. I fed the adults only frozen and thawed bloodworms until the larvae appeared and I joined this group. Now they have a variety of white and blackworms in addition to their regular diet.
Good luck on this exciting journey. I think I'll check out that book the others recommend, too!
Dana