I have an Eastern Newt that wandered into my house a couple of months ago (we live in New Hampshire and there's about 20/mile on any given country road after a storm) in a 10 gallon tank that's mostly terrestrial with a small stepped water dish in the middle. When we first got Mikey, as we've taken to calling him, he was a bit skinny and a very bright red. After two months of about 5-10 wingless fruit flies a day, he's a much more pleasantly plump newt, but he's also starting to get more brownish-green and less red. I've seen on the Caudata Culture page for the eastern newts that the second metamorphosis can be hastened by plentiful food, and since he was originally wild, I would assume that he's now getting considerably more and consistent meals than before. Note: the spots on Mikey are water droplets, not some horrible insect infestation.
In addition to the increasingly greenish-brown color (this photo is 10 days old, and my camera's USB cable just got chewed up by my cats), Mikey's tail has gotten a little more vertical over the last two weeks, in comparison to the mostly rounded one he had when we he arrived. I would automatically assume he's entering an aquatic phase, but he has had a change in diet, so I thought perhaps it was simply that whatever allows him to create the red color wasn't present in the fruit flies, or that the red color is more prominent in stressful times. Assuming though that he does seem to be becoming aquatic, should I move to a 1/2 water tank now, or wait a little while for more obvious signs?
NB: If there's another forum topic that addresses this, please point me in the right direction. I have done a few searches for this topic, but I have to wait 45 seconds between searches, and haven't found anything that convinced me one way or another, so I've decided to post a new thread. Please keep that in mind before rudely telling me to go do a search in the forum.
Thanks.

In addition to the increasingly greenish-brown color (this photo is 10 days old, and my camera's USB cable just got chewed up by my cats), Mikey's tail has gotten a little more vertical over the last two weeks, in comparison to the mostly rounded one he had when we he arrived. I would automatically assume he's entering an aquatic phase, but he has had a change in diet, so I thought perhaps it was simply that whatever allows him to create the red color wasn't present in the fruit flies, or that the red color is more prominent in stressful times. Assuming though that he does seem to be becoming aquatic, should I move to a 1/2 water tank now, or wait a little while for more obvious signs?
NB: If there's another forum topic that addresses this, please point me in the right direction. I have done a few searches for this topic, but I have to wait 45 seconds between searches, and haven't found anything that convinced me one way or another, so I've decided to post a new thread. Please keep that in mind before rudely telling me to go do a search in the forum.