Isn't the whole point of an UG heater to create circulation through the gravel bed in the absence of an UG filter, not specifically to heat-the-roots? Betty Goetz > Is your idea of an undergravel heater to increase plant growth rate? > With an undergravel heater, the roots would be warmer than with other > types of heaters. > > My plants seem to do better at a slightly lower temperature than my > fish do. > Does anyone else see the reverse? > > John > > > > > On Jan 5, 2006, at 2:34 AM, myth wrote: > > Doh! I knew I'd catch something wrong. In question #3, I said " How > much can I expect to spend for a 75 gallon? " What I meant was, how > much can I expect to pay for a substrate heater setup for a 75 gallon > tank. Googling doesn't seem to tell me if it's just the cable or if > I'll need extra bits. > > And finally, the books I own are "Setting up a Tropical Aquarium Week > by Week" by Stuart Thraves. It's great, but very much a beginner's > book so it doesn't cover a lot of fish.. The other book I own is a > secondhand "Aquarium Encyclopedia" by HPBooks. It's large, but old, > and technology has outpaced it. > > Alex > > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > > > > > > Dr. John F. Ruhland > The Natural Health Medical Clinic > 4002 - 25th Avenue S, Seattle, WA 98108 > 206-723-4891 > www.drruhland.com > > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member