RTB8 wrote: Urrrrgh! The electricity tripped n will only be back in a few days, how can I keep my ts warm?
Can't you take them to a friend or family that have power?
Primal method make a fire and put a couple of bricks into the fire,clay bricks work the best, take them out rap them in tin foil and put them next to the tanks, or put them into a cupboard or box and put the bricks in there this will keep the heat.
And if you don't want to do that cover them with a heavy blanket! It should start warming up from today