How many inches of subtrate in a 20 gallon long tank? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 10-30-2007, 08:40 PM Thread Starter
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How many inches of subtrate in a 20 gallon long tank?

Just what the title says what is the recommed inches in height for a 20 gallon long tank?
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post #2 of 6 (permalink) Old 10-30-2007, 08:44 PM
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i think the recommended height for ANY tank is 2" - 4" inches (from rexgrigg.com)

to find out how much you need, go here: https://www.plantedtank.net/substratecalculator.html and input your dimensions and such
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post #3 of 6 (permalink) Old 10-31-2007, 12:57 AM
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I usually aim for an average of three inches, but since a 20 long is only 12 inches high, I would recommend 1.5 at the front sloping to 2.5 at the back. Just my two cents.
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post #4 of 6 (permalink) Old 10-31-2007, 02:30 PM
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if your just going to plant some HC/hairgrass or other rosette plants. substrates down to an inch is enough, but if you plan on planting anything else, i'd recommened at least 2 inches.

3-4 inches would depend on the height of your tank too. too thick a substrate will make your tank look a little short and limit the growth of the plants.
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post #5 of 6 (permalink) Old 11-02-2007, 09:15 PM
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Is there a problem with having too much substrate in there? I think I have about 4-5" of soilmaster because my cichlids like to dig and because the substrate is so light.
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post #6 of 6 (permalink) Old 11-05-2007, 02:44 AM
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i don't think there's a problem with that much substrate. just less water for swimming and less height for plants to grow...
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