coldnights

So I wake up this morning and noticed my two 75w Cobalt neo-therm pro heaters were flashing in the blue zone of 74°f Tank is a waterbox 35.2 and only have a mesh screen top. It's 5°c outside and had the window in the living room open a bit just to help with pH at night. It's cool in the room...

Cycling a waterbox 15gal all in one, no lid as of yet. Over night the temp drops from 28°c to 23°c even running a 100w ehiem jager (overpowered but using an inkbird for protection). as i don’t have live stock yet it’s to not of much concern…. butttttt, as i am wanting to add live stock at some...