For substrate,anyone ever tried the ultra absorbant material that places like car shops use to soak up fluids and oils around the work shop ground?Looks similar to sand but a little bit bigger grains.Just wondering if anyone has tried or thought of it as a substrate.
mike
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R.I.P Steve Irwin aka Crocodile Hunter
"Never insult an Alligator until you have crossed the river"-oriental proverb


