Tank temperature. Am I too cool ;)

[Doctorgori]

I live in NE Ohio, all my tanks are in the basement; Temps avg all year between 70-75F . I have 20+ tanks and I’ve only recently added a heater on my 210 only because I’m emulating BRS/WWC ...

IMO, heaters aren’t a absolute necessity in most homes if you keep the themostat above 70F and temps are stable and/OR you have a large tank.