Question about dosing with Fertilizer - The Planted Tank Forum
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post #1 of 3 (permalink) Old 12-15-2013, 06:06 PM Thread Starter
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Question about dosing with Fertilizer

There are tons of threads on dosing that I looked up. I ordered micro macro mix(this one tells you to mix with 2 cups water for 1/4 cup of mix,) easy as that which is great. Then I got Mono potassium phosphate KH2PO4 to supplement phosphates that the mix lacks. I also order potassium nitrate KNO3 (after i received I realized that the mix has 1 part of this in there already.) Now the KH2PO4 and the KNO3 can I premix with solution instead of putting it in the tank dry. I need to dose a 8 gallon nano a 45 gallon and a 29 gallon. The 29 and 45 gallon is running pressurized co2 which are running medium light. The 8 gallon is running the 12" finnex fugeray I guess that would be considered medium light too, but I am dosing with Excel in this tank. So could I be able to mix dry ferts with solution to does into the tank or is it better to just put it in dry?
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post #2 of 3 (permalink) Old 12-20-2013, 03:16 PM
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Generally, mixing Micros and Macros is not a good idea due to undesired precipitation. I like to mix my micros and iron together with my Glut (Excel) and dose all at once in the morning, then dose dry to the tank in the evening.
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post #3 of 3 (permalink) Old 12-20-2013, 03:47 PM
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Mixing KH2PO4 with a micro nutrient mix isn't a good idea. The iron can combine with the phosphate to form an insoluble precipitate, making the iron unavailable to the plants. Other than that, it would work ok.

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