Can someone hold my hand with this dry dosing? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 06-21-2012, 03:29 PM Thread Starter
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Can someone hold my hand with this dry dosing?

OK, I realize it is rather obnoxious when there are multiple threads on a topic and someone posts a "hhhhhhhhhheeeeeeeellllppp meeeee" thread, but I just cannot confidently figure out what I need to dose my tank.

I have read the stickied threads but I am still uncertain. It's been so very long since I had any kind of chemistry class that I feel very hesitant to try and figure this out myself, and when I went to the online calculators, they would only give me grams for EI dosing and I am reluctant to buy a scale when it seems I see recipes using teaspoons?

I purchased these fertilizers:
  • Micros -
    • Plantex CSM + B -
  • Macros -
    • Potassium Nitrate (KNO3) -
    • Mono Potassium Phosphate (KH2PO4) -
    • Potassium Sulfate (K2SO4) -
I would like to dose these using the EI method with a 50% weekly waterchange. That seems to be the superior method advocated by this forum for those of us who wish to avoid frequent water testing, correct?


I have a 40 gallon tank, moderately planted. It is high light, with DIY CO2 diffused through my HOB filter. (I do plan to upgrade to pressurized in a few months once I get the cashola and figure out what system I need).


Can someone tell me how many teaspoons of each of these fertilizers I should add on dosing days?
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post #2 of 9 (permalink) Old 06-21-2012, 04:32 PM
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post #3 of 9 (permalink) Old 06-21-2012, 05:05 PM
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https://plantedtank.net/forums/showthread.php?t=21944

DIY Trace/Micro/Macro Recipe
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DIY Trace/Micro/Calculation Etc
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post #4 of 9 (permalink) Old 06-21-2012, 05:44 PM
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Per https://plantedtank.net/forums/showthread.php?t=21944

Macro days (3x a week)

KNO3 - 1/2 tsp
KH2P04 - 1/8 tsp
K2SO4 - 1/8 tsp (if you need more potassium - many people don't dose this)

Micro Days (3x a week)

Plantex CSB+B - 1/8 tsp


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post #5 of 9 (permalink) Old 06-21-2012, 06:07 PM Thread Starter
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Thank you all so much these posts are just what I needed!
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post #6 of 9 (permalink) Old 06-21-2012, 09:18 PM
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Quick question that may be obvious to those who know but I'm missing it!

Quote--K2SO4 - 1/8 tsp (if you need more potassium - many people don't dose this)


How does one determine the need for more potassium?
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post #7 of 9 (permalink) Old 06-21-2012, 09:24 PM
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Quote:
Originally Posted by PlantedRich View Post
Quick question that may be obvious to those who know but I'm missing it!

Quote--K2SO4 - 1/8 tsp (if you need more potassium - many people don't dose this)


How does one determine the need for more potassium?
I believe the apperance of GDA is a sign of low potassium.
I know in my tank when i upped the dose it subsided significantly with out changing anything else (ie lighting sedule)

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post #8 of 9 (permalink) Old 06-21-2012, 09:48 PM
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Thanks..
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post #9 of 9 (permalink) Old 07-01-2012, 09:08 PM
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Potassium deficiency will show in your plants.
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