I'm brewing a very high gravity, high alcohol brew right now... 1.089 est 10% abv. I pitched two packs of US05 and 8 hours later saw high activity and a nice cake of foam. 24 hours later and this thing is VERY active. Looks like a slushy machine inside... very good activity! Clearly the yeasties like this beer but the temp is pushing 78 even though another carboy next to it is showing 70. Is this normal? Anything to be worried about?