Sounds like your off to a real good start. Water sounds good, housing and all that sounds good. You may try to take some water out, in winter, as Joan said, they are more terrestrial, mine is. Try buying some frozen bloodworms for them, I think you ment to say that the one with the cloudy eyes isn't doing much, but try offering it some bloodworms and black worms, It's probably stressed, aside from whats causing the cloudy eyes, which is hard to know exactly what is going on with that. It's possible that it may just need to shed. By the way, im not sure you can find a "cooler" (actually refered to as a chiller) for a tank that small. A good temp range is 60-70 degrees, and you can buy a digital thermometer for about 20 bucks, I know Flukers just came out with one that has temp and humudity. You can float frozen water bottles without lables/glue in the tank to bring down the temp if needed. Hope they are enjoying their new home!
Oh, and what type of filter are you using? That could stress them too, depending on what kind it is and how it is set up, or if its loud. You may not even need it. You can also buy some java moss for them or some other types of aquatic plants, newts love that.
(Message edited by newtsrfun on September 28, 2005)