Sand and Pebbles. Quick Question. - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 01-03-2012, 05:12 AM Thread Starter
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Sand and Pebbles. Quick Question.

Is it okay if I put a layer of pebbles at the bottom and after that a layer of white sand? Or should I go all sand all the way.

Thanks. Good day.
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post #2 of 3 Old 01-03-2012, 11:52 AM
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Wouldn't the sand eventually work it's way below the pebbles?

In over my head!
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post #3 of 3 Old 01-03-2012, 12:41 PM
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Yes. Gravity and the normal movement of water through the substrate will cause the smallest particles to be on the bottom and the largest on top. Which is why i never recommend different particle-sized substrates. All sand is best, or all gravel, depending upon the look you are after and of course any needs of the fish (substrate fish in particular).

Also, I would not use white sand. Fish feel less threatened over a darker substrate.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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