The Planted Tank Forum - View Single Post - substrate not holding plants
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Old 11-15-2012, 07:11 PM   #5
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Wow 6"? Thats the deepest i think ive ever heard of lol. I would think at 3" it shouldnt be an issue. Plant stems at an angle, say 60 degrees. Theyll still grow straight but it gives lighter soils more holding power

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