cheap bottom layer for flourite black sand - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-23-2011, 04:00 AM Thread Starter
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cheap bottom layer for flourite black sand

So I've got 2 bags of flourite black sand for my 20g high, and have no desire to drop an additional 30$ on more. I was curious as to everyone's thoughts on using soil as a bottom layer? I have some of the top soil from home depot, which looks to have little to no organic material in it. It's reddish and very sandy looking dry.

Or.... Should I just use the two bags I have and avoid the hassle? 2 bags will give me ~2" of substrate... could go 2.5 in back, sloping to 1-1.5" in front? will this be deep enough? thanks in advance ladies and gents
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post #2 of 5 (permalink) Old 03-23-2011, 04:20 AM
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Two inches of substrate is deep enough to grow plants. I used mineralized top soil under Flourite black sand in a 10 gallon tank, and it worked ok. The two materials stayed separate, even separating more than it was when I put it in. When I tore down the tank it was easy to scoop out the Flourite without mixing in any of the MTS. Is the weather in Arkansas good enough to mineralize some soil outdoors?

Hoppy
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post #3 of 5 (permalink) Old 03-23-2011, 04:33 AM Thread Starter
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Weather here would be good for MTS, however I live in a duplex with no space to speak of outside. I considered doing it in my spare bedroom but not sure how that would work out. House temp stays around 74 degrees or so. Was planning on doing the substrate swap this weekend in any event, though I've considered making up some MTS for use in future tanks.

Hmm. Am I going to get any benefits from unmineralized soil at all? or would I just be using it for filler?
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post #4 of 5 (permalink) Old 03-23-2011, 05:56 PM
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why don't you use miracle gro organics from hw or lowes..
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post #5 of 5 (permalink) Old 03-24-2011, 12:34 AM Thread Starter
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already have ph of ~6 with co2 injection. Don't really care to push it any further with the peat in that stuff.
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