just upgraded my tank, have a new 150W visitherm heater that is behaving curiously! The light never goes off on it, but yet the temperature of the water is around 23.5/24 deg (even after a night with no tank lights on). My room temperature is no more than 19 deg, so whats going on? I have the old 50 w heater from my old tank, should I put this in as a temp measure and take the new heater back? the size of the tank is 90 litres.
do visitherm heaters always keep their lights on?
do visitherm heaters always keep their lights on?