On Wed, 24 Sep 2003 11:43:18 -0700, Dave Millman
wrote:

wrote:

I've bought
flourite for a substrate, live in central FL, the house temperature
hovers around 78-81 in the summer but in the winter we open the
windows a lot so the temperature might be more in the low-mid
seventies. Will the cables be effective at these temperatures?

The most enthusiastic fans of heating cables seem to live in cold
climates or high altitudes. The vast majority of us don't use them. In
your climate, you certainly don't need them.

Right. I live in upstate ny and I have them in my tank. For cold
climates I recommend them but I'd also recommend that you put
them on a timer and alternate the on/off cycle. I feel this helps
establish more movement of water in the substate.