How much K2S04 if not dosing KN03 - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 01-27-2016, 12:16 AM Thread Starter
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How much K2S04 if not dosing KN03

Hello all

If my tank is 30 Gal and according to EI method

i should dose

1/4 Tsp-KN03 3x a week
1/16 Tsp-KH2P04 3x aweek
1/2 Tsp-GH booster once a week
5ml or 1/16Tsp-Trace 3x a week


but if my nitrate levels is already high for any reason, How much i should dose K2S04 to reach the right level of the (K) Potassium ?
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post #2 of 4 (permalink) Old 01-27-2016, 12:40 AM
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I do the same as I would the kn03

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post #3 of 4 (permalink) Old 01-27-2016, 12:58 AM
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The KNO3 dose is 1.39 grams and the K2SO4 dose should be 1.77 grams. So a slightly bigger 1/4 teaspoon I guess.

Feel free to edit.
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post #4 of 4 (permalink) Old 01-28-2016, 08:16 AM Thread Starter
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My problem is i cant get KNO3 where i live so i am using calcium nitrate Ca(NO3)2 instead for Nitrogen so i am missing the Potassium from the KNO3
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