Im growing in a bacement,my soil temps ay night are between56-58degrees fairn. Are these soil temps too low?Im flowering so 12 hours of this temp.,Air temp gets down to the same,right at 75 during the day.Two are in 5 gal buckets,two in 2 gal buckets and one in a 10''pot.The med is pro-mix with just a little extra perlite.I cant use a heater(old house only one plug in the room).My room is a 3x3 hydro-hut with a 400 hps with 123watts of cfls.Ps theres also another small room thats why i cant use a heater Overload the circut.Thanks for any feedback.Stay Safe!