The Planted Tank Forum - View Single Post - Using Oil-Dri for cheap substrate?
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Old 09-08-2012, 07:12 PM   #32
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So I'm assuming from the conversation that "pre-loading" the STS with ferts would help keep it from sucking up all the carbonates??

Any guidance on what ferts and how much to use for say 40 lb's. I actually have 80 lb but it's in 2 separate tubs waiting for me to put in my tank. Might as well load it up while it's just sitting there.
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