The Planted Tank Forum - View Single Post - Something is missing from my fertilizer!
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Old 11-05-2012, 02:08 PM   #8
houseofcards
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Regardless he's showing a deficiency. Dosing extra K will only help so it's a no-brainer to put it in. K get's used up very quickly in co2/good light. Personally I would do that than go by the notion that there is 'suppose' to be enough from the other two macros.
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