Substrate & undergravel heaters
I'm planning and budgeting a 100L planted tank
My LFS does not carry undergravel heaters. He says "they are not being
produced any more." Any reasons?
Substrate: Thinking of mixing 1mm quartz sand with SeaChem Fluorite to
reduce cost of substrate (50:50 or 2:1 ratio). Problems, thoughts? Will
proper feeding compensate. How about creating a plenum using egg crate
instead of using the sand to increase the depth of the substrate?
Thanks
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