Gravel as base for finer substrate? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 10-01-2018, 02:47 PM Thread Starter
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Gravel as base for finer substrate?

I have a 90 gallon which will have plants and corydoras.
Today it has an inch of gravel 3-5mm.
To get the desired slope to create depth, does it work to use the gravel as a base and top it with a layer of base soil and a layer of fine sand or will it all sink down into the gravel?
What is the correct way to do it?
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post #2 of 3 (permalink) Old 10-03-2018, 03:24 AM
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In my limited experience the coarse gravel will rise to the top.
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post #3 of 3 (permalink) Old 10-03-2018, 01:18 PM
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I would stick to 1 type of substrate. Using more than one will eventually result in mixing and the larger grained stuff will make its way to the top.

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