Did I use to much substrate ? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 07-13-2019, 11:52 PM Thread Starter
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Did I use to much substrate ?

I have a 20 gallon long tank , I used soil on the bottom , fluorite clay , and sand to cap? When I measure from the bottom to the top of the sand it came out to 3 inches ? If I did use to much sand what’s an easy way to remove it without damaging the soil underneath. ( Sorry the water is still cloudy from the sand )
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post #2 of 3 (permalink) Old 07-18-2019, 03:18 PM
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Hard to tell from the picture, how deep is the soil and clay layer? On first look it doesn't seem "wrong", but it's really up to you to decide whether you can work with it or not. Usually 1"-1.5" cap. The soil will compact a bit as it breaks down/compacts. I did a .5" thick soil layer and 1" cap on my dirt tank but I didn't use sand.

If you want to remove just the sand, use just a length of tubing start a flow through it into a bucket and it will suck it right up. The more height the faster it will suck. Not a gravel vac as the larger diameter going to a smaller diameter will not provide enough suction. 1/2-5/8" will suck up the sand in a hurry. (and drains the tank fast also) Airline tubing will also suck it up, but at a slower rate.
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post #3 of 3 (permalink) Old 07-18-2019, 05:21 PM
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Just so long as sand cap itself portion is not over 1.5” it should be fine. A couple/few spots around tank getting over that level not a big problem.

My big question is why is there so much soil floating around top of tank? Did you dig it up when filling tank by not using a splash plate to protect substrate bed?
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