substrate? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 05-04-2011, 06:17 PM Thread Starter
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I bought a 14 gallon biocube about 4 months ago. I mixed silicone sand with some gravel. Is this good substrate for a planted aquarium?
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post #2 of 3 Old 05-05-2011, 01:34 AM
It should be fine if there's enough of it. But it also might depend on what kind of plants were getting planted

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post #3 of 3 Old 05-05-2011, 11:34 AM
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Also depends on the material. Some sands and gravels are calcareous (composed of calcium-type rock) and will raise hardness and pH which may or may not be suitable depending upon the fish and plants.

The sand, being smaller grains, will sink to the bottom, leaving the larger gravel on top. This is fine from the plants perspective.

Silicone sand is made from silica, and high silica can cause diatoms (brown algae). Just a caution.


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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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