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Re: [APD] substrate and substrate heating
The heating coils should come with some suction ccups to
attach to the bottom glass and hold the cable in place.
/There wil then be a small amount of substarteunder the
cables and most of it above.
But save your money and skip the cables-- spend it on a
nice looking substrate or plants or CO2 equipment. You
won't find any signif diff with or without the cables
except for the impact on your wallet.
--- Darrell Fennell <dkfennell at yahoo_com> wrote:
> I am about to set up a 75 gallon, which I hope to
> heavily plant. Over the past month I have been
> cogitating over the substrate, and I have come to the
> conclusion, after initial skepticism, that having
> substrate heating coils is worth a shot. It seems to
> me to that to maximize the effectiveness the substrate
> should have a high cation exchange capacity. I have
> been considering using vermiculite covered by
> My first question is: Where does this stuff (or
> anyother substrate) go in relation to the heating
> cables. Should something go under the coils (like
> clay)? Should the vermiculite surround the coils
> (above and below)? Maybe my problem is my inability
> to visualize how the cables are set up or how close
> they are to the bottom.
> My second question is: Am I off-base in thinking of a
> layer of vermiculite under a layer of flourite?
> Should I put something between (like dirt)? Or should
> I just suck it up and use only Flourite?
> Darrell Fennell
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