Substrate heater installation?
I have a 20w Tunze substrate heater. I planned to put a layer of tiny
gravel around it, then Fluorite on top, then some more gravel. Maybe I
could pack Fluorite around the heater then gravel on top? (A response on
this NG told me it should be 50/50 Fluorite/gravel, which I guess I'll
stick too.)
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