When I was researching them as possible roomies for my goldfish, I read somewhere that someone experimented with that already. They found that anything over 78 significantly reduced their lifespan. They weren't as active and their color was off too. If it were me, I wouldn't.
I'm actually going to ask for a link in this case. It isn't that I don't take your word for it, but I would like to read this myself before I take it.