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Re: heating cable sources
Arizona Aquatics carries a different kind of substrate heating system
that appears plausible. It uses a powerhead to push conventionally
warmed tank water through tubing that runs under the substrate. See
their substrate page. Does anyone have experience with it?
John Caddy
Self Expressing Earth (SEE)
<http://cgee.hamline.edu/see>
John Caddy
Self Expressing Earth (SEE) <http://cgee.hamline.edu/see>
Center for Global Environmental Education
Hamline University