I just noticed the one sprig of anacharis I planted in my 5.5 seems to have gotten bigger overnight, too....I just looked at a picture I took maybe a week ago, maybe less, and it doubled!! The rest of the bunch I bought that's floating in the 10gallon isn't doing as well....maybe it's a combo of planting and the snail poopy in this tank! I want to try to propagate it, but I'm scared ill kill it.
But yeah, I can't believe it either. I just looked and I was like "waaaaaaait....since when does that plant reach the surface??"