In article ,
Dave Millman wrote:

" wrote:

I don't use heaters except in a Discus. Slows plant growth down also.
Regards,
Tom Barr

That comment probably needs qualification. I'm in California, and even here
an
unheated tank runs aroung 66-68F during the winter, possibly colder at night
if
its a small tank. An awful lot of fish are going to have trouble below 70F.

During the summer, of course, the heaters seldom turn on.


Florida here. No heaters either. The tanks never get below 75F.

Scott