gravel heaters

[mralgae]

ok folks need your help on this one.
have just heard that these cables are in question as to if they realy work or not. trying to get more info at the moment but apparently tests done show little or no effect atall to thier effectivness.
has any one heard or have experiance of them?

[jackpike]

As far as I'm aware aren't they supposed to be used in vivariums to keep sand warm for reptiles.

[mralgae]

they are that jp, but also used in planted tanks to keep the root area warm and create a heat ripple effect around the root to help nutriants flow. but now im not so sure on all the info i have been reading up on for the new tank. guess its if it works for you then do it time again.

[mralgae]

think this answers my douts.

forum.aquatic-gardeners.org/viewtopic.php?p=3876&sid=ff4f33c20670640093d50ba3798cb1cf