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Re: External CO2 Diffuser, Substrate heating cables, Eusteralis

> Date: Tue, 6 Nov 2001 22:41:41 -0500
> From: "Natural Aquariums" <naturalaquariums at starpower_net>

> As a side note, does anyone have any experience with the M3 substrate
> heating cables?  They seem very reasonably priced.  They also have a
> an analog or LCD heat controller.  Has anyone used these?

I don't use their cables but I've had their LCD heat controller for a few
months now. My venerable 1991-vintage Dupla controller had some problems of
late. I believe the technical term that explains the problem is "going

I'm very impressed with the M3 controller - very solid unit. I have it set
at 76 F with the recommended minimum 2 degree differential. I've not seen
the water temp differ by more than +/- 0.5 degree as measured by an
independent digital thermometer.

Two thumbs up.

 George Booth in Ft. Collins, CO (booth at frii dot com)
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