One of the reasons I've decided to go in a Nothobranchius direction this Spring, is fishroom temperature. It's a little warmer than I like over the entire year, and I can't bring it down. With the insulation and the dehumidifier, it stays at 22-23 without the heating coming on, even in a Canadian winter.
A lot of my Aphyosemion killies don't seem to like that. So, I have to adapt to the conditions, and I think some Nothos could be interesting to try. It's a whole different way to keep fish.
But in my past attempts with keeping Nothos, I have noticed they like the kinds of temperatures I can offer. What I read confirms that. My favourite so far has been rubripinnis. I bought eggs from some of the rarer ones 2 years ago, but got no hatches. The mail is a cruel environment, because the person who sent them is absolutely trustworthy, but the eggs were gone - decomposed because of something unknown that happened en route. I've mailed eggs to myself, with Chromaphyosemions, and had the peat arrive empty or 20% hatches - we tend to be overly optimistic about the chances of living eggs surviving. In about 60% of my egg buys, enough have to make it worthwhile though.
I'll see what's on offer his Spring when it's warmer, and there'll be a few of us here to compare notes.