And then there were two...

I woke up this morning to find two of my guppies survived the night in the big tank (though they probably won't make it the rest of the day).  I'm quite surprised to see even one, much less two of the ten I put in there alive.  As if the giant fish hunting them weren't bad enough, I keep a heater in the small tank so the large tank is much colder.  Sorry fishies...either adapt quickly or become lunch.