Dry dosing and Nutrient Solution Recipes - The Planted Tank Forum
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post #1 of 179 (permalink) Old 05-26-2014, 04:35 PM Thread Starter
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Dry dosing and Nutrient Solution Recipes

There seems to be a lot of confusion about how to mix nutrient solutions. Below are basic recipes for solutions or dry dosing for common US tank sizes. Every solution or dry dose will provide the exact levels shown below. These should be dosed 3 time per week based on high light and CO2 injection with a 50% weekly water change. Low light and no CO2 simply use 1/3 of the dosing listed with the same 50%weekly water change.

Since KNO3 (potassium nitrate) provides significant potassium K2SO4 is optional. The K2SO4 doses listed below provide 2.2 ppm of potassium which raises potassium to the full EI level. This is usually not necessary.

Mix the amount given in 500ml of water, preferably R/O or distilled. Doses vary as listed depending on tank size.

NO3 7.5 ppm
N 1.694 ppm
PO4 1.3 ppm
P 0.424 ppm
K 5.3 ppm (7.5 ppm with additional K2SO4)
Fe 0.5 ppm
Mg 0.107 ppm
dGH 0.025 ppm
Cu 0.007 ppm
B 0.061 ppm
Mn 0.143 ppm
Mo 0.004 ppm
S (0.917 ppm with additional K2SO4)
Zn 0.028 ppm

1ml/Gallon

KNO3 23.1 gm (approximately 4 1/2 teaspoons)
KH2PO4 3.5 gm (approximately 3/4 teaspoons)
Plantex CSM+B 14.5 gm (approximately 3 1/4 teaspoons)
Optional: K2SO4 9.4 gm (approximately 1 1/2 teaspoons)

Dry Dosing per 1 gallon
KNO3 46.3 mg (too small to use teaspoon measures)
KH2PO4 7 mg (too small to use teaspoon measures)
Plantex CSM+B 29 mg (too small to use teaspoon measures)
K2SO4 19 mg (too small to use teaspoon measures)


5ml/10 gallons

KNO3 46.3 gm (approximately 9 teaspoons)
KH2PO4 7 gm (approximately 1 1/4 teaspoons)
Plantex CSM+B 29 gm (approximately 6 3/4 teaspoons)
Optional: K2SO4 19 gm (approximately 3 teaspoons)

Dry Dosing
Optional: K2SO4 189 mg (approximately 1/32 teaspoons)
KNO3 463 mg (approximately 1/16 teaspoons)
KH2PO4 71 mg (too small to use teaspoon measures)
Plantex CSM+B 290 mg (approximately 1/16 teaspoons)


5ml/20 Gallons

KNO3 93 gm (approximately 17 3/4 teaspoons)
KH2PO4 14 gm (approximately 2 1/2 teaspoons)
Plantex CSM+B 58 gm (approximately 13 1/2 teaspoons)
Optional: K2SO4 38 gm (approximately 6 teaspoons)

Dry Dosing
Optional: K2SO4 377 mg (approximately 1/16 teaspoons)
KNO3 926 mg (approximately 1/8 teaspoons)
KH2PO4 141 mg (approximately 1/32 teaspoons)
Plantex CSM+B 580 mg (approximately 1/8 teaspoons)


10ml/29 Gallons

KNO3 67.123 gm (approximately 13 teaspoons)
KH2PO4 10.224 gm (approximately 1 3/4 teaspoons)
Plantex CSM+B 42.028 gm (approximately 9 3/4
Optional: K2SO4 26.91 gm (approximately 4 1/4 teaspoons)

Dry Dosing
Optional: K2SO4 547 mg (approximately 1/16 teaspoons)
KNO3 1.3 gm (approximately 1/4 teaspoons)
KH2PO4 204.5 mg (approximately 1/32 teaspoons)
Plantex CSM+B 841 mg (approximately 1/4 teaspoons)


10ml/40 Gallons

KNO3 92.5 gm (approximately 17 3/4 teaspoons)
KH2PO4 14 gm (approximately 2 1/2 teaspoons)
Plantex CSM+B 58 gm (approximately 13 1/2 teaspoons)
Optional: K2SO4 38 gm (approximately 6 teaspoons)

Dry Dosing
Optional: K2SO4 754.5 mg (approximately 1/8 teaspoons)
KNO3 1.8 gm (approximately 1/4 teaspoons)
KH2PO4 282 mg (approximately 1/16 teaspoons)
Plantex CSM+B 1.2 gm (approximately 1/4 teaspoons)


20ml/46 Gallons

KNO3 106.5 gm (approximately 20 1/2 teaspoons)
KH2PO4 16.2 gm (approximately 3 teaspoons)
Plantex CSM+B 66.7 gm (approximately 15 1/2 teaspoons)
Optional: K2SO4 43.4 gm (approximately 6 3/4 teaspoons)

Dry Dosing
Optional: K2SO4 867.7 mg (approximately 1/8 teaspoons)
KNO3 2.1 gm (approximately 1/2 teaspoons)
KH2PO4 324.4 mg (approximately 1/16 teaspoons)
Plantex CSM+B 1.3 gm (approximately 1/4 teaspoons)


15ml/55 Gallons

KNO3 84.868 gm (approximately 16 1/4 teaspoons)
KH2PO4 12.927 gm (approximately 2 1/4 teaspoons)
Plantex CSM+B 53.139 gm (approximately 12 1/4 teaspoons)
Optional: K2SO4 34.024 gm (approximately 5 1/4 teaspoons)

Dry Dosing
Optional: K2SO4 1 gm (approximately 1/8 teaspoons)
KNO3 2.5 gm (approximately 1/2 teaspoons)
KH2PO4 388 mg (approximately 1/16 teaspoons)
Plantex CSM+B 1.6 gm (approximately 1/4 teaspoons)


15ml/75 Gallons

KNO3 115.7 gm (approximately 22 1/4 teaspoons)
Plantex CSM+B 72.5 gm (approximately 16 3/4 teaspoons)
KH2PO4 17.6 gm (approximately 3 1/8 teaspoons)
Optional: K2SO4 47 gm (approximately 7 1/4 teaspoons)

Dry Dosing
Optional: K2SO4 1.4 gm (approximately 1/4 teaspoons)
KNO3 3.5 gm (approximately 3/4 teaspoons)
KH2PO4 529 mg (approximately 1/8 teaspoons)
Plantex CSM+B 2.2 gm (approximately 1/2 teaspoons)


20ml/90 Gallons

KNO3 104.2 gm (approximately 20 1/32 teaspoons)
KH2PO4 15.9 gm (approximately 2 3/4 teaspoons)
Plantex CSM+B 65.2 gm (approximately 15 1/8 teaspoons)
Optional: K2SO4 42.4 gm (approximately 6 3/4 teaspoons)

Dry Dosing
Optional: K2SO4 1.7 gm (approximately 1/4 teaspoons)
KNO3 4.2 gm (approximately 3/4 teaspoons)
KH2PO4 635 mg (approximately 1/8 teaspoons)
Plantex CSM+B 2.6 gm (approximately 1/2 teaspoons)


25ml/125 Gallons

KNO3 115.7 gm (approximately 22 1/4 teaspoons)
KH2PO4 17.6 gm (approximately 3 1/8 teaspoons)
Plantex CSM+B 72.5 gm (approximately 16 3/4 teaspoons)
Optional: K2SO4 47.2 gm (approximately 7 1/4 teaspoons)


Dry Dosing
Optional: K2SO4 2.4 gm (approximately 1/4 teaspoons)
KNO3 5.8 gm (approximately 1 1/8 teaspoons)
KH2PO4 881.4 mg (approximately 1/8 teaspoons)
Plantex CSM+B 3.6 gm (approximately 3/4 teaspoons)

Last edited by Zorfox; 04-14-2016 at 09:29 PM. Reason: Error in 46 gallon dose size
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post #2 of 179 (permalink) Old 05-26-2014, 06:10 PM
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This is awesome dude...

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post #3 of 179 (permalink) Old 05-26-2014, 06:15 PM
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Bookmarked for reference. Will be using.

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post #4 of 179 (permalink) Old 05-27-2014, 05:33 AM
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Good post feller.




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post #5 of 179 (permalink) Old 05-27-2014, 06:46 AM
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For clarification, dry dosing is just the equivalent of dosing dry ferts directly into the tank right?
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post #6 of 179 (permalink) Old 05-27-2014, 08:32 AM
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This is excellent, thanks.


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post #7 of 179 (permalink) Old 05-27-2014, 09:16 AM
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You just saved me some calculations. Thanks!

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post #8 of 179 (permalink) Old 05-27-2014, 12:12 PM
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Good deal.
Now there is a place to send folk's for easy dosing guide for those who don't wanna over complicate dosing.
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post #9 of 179 (permalink) Old 05-27-2014, 02:35 PM Thread Starter
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Thanks guys.

Quote:
Originally Posted by roadmaster View Post
Good deal.
Now there is a place to send folk's for easy dosing guide for those who don't wanna over complicate dosing.
My thought exactly.
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post #10 of 179 (permalink) Old 05-27-2014, 07:35 PM
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For 125 gal

25ml/125 Gallons

Plantex CSM+B 72.5 gm (approximately 16 3/4 teaspoons) to get PPM per full EI level....which is 1 PPM right?

This only gives you 1/2 what EI recommends: to reach target level of 1 PPM you have to Double the amount of CSM+B accordingly to Wets Calculator.

So which 1 is it?

Cheers!!!
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Last edited by JoraaĐ; 05-27-2014 at 07:48 PM. Reason: ~~~
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post #11 of 179 (permalink) Old 05-27-2014, 09:50 PM Thread Starter
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Quote:
Originally Posted by JoraaĐ View Post
For 125 gal

25ml/125 Gallons

Plantex CSM+B 72.5 gm (approximately 16 3/4 teaspoons) to get PPM per full EI level....which is 1 PPM right?

This only gives you 1/2 what EI recommends: to reach target level of 1 PPM you have to Double the amount of CSM+B accordingly to Wets Calculator.

So which 1 is it?
A single dose of Plantex should target iron to a level of 0.5ppm. Wet's calculator targets 0.5ppm of iron for Plantex. Not sure where you came up with 1ppm. Remember, this is a single dose not what we want our tank levels to remain at.
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post #12 of 179 (permalink) Old 05-28-2014, 05:41 AM
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I dose with an EI pack.

Just got some MgS04.

Using all the EI calculators I see that I'm overdosing certain elements.

Is there a calculator that calculates all all of the ferts I'm using rather than individual ferts?

PPS system?

Cheers!

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post #13 of 179 (permalink) Old 05-28-2014, 02:03 PM Thread Starter
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All the calculators I've seen calculate individual fertilizers. YANC is a great online calculator. I'm in the process of writing a Windows based calculator. Currently it will keep a running total of selected nutrients which is similar to what you want. You can download it from the link above if you want to try it.
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post #14 of 179 (permalink) Old 05-28-2014, 03:50 PM
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Yes, Rota.la is the one I used.

Let us know when you have your online version running.

Cheers!

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post #15 of 179 (permalink) Old 05-28-2014, 07:39 PM
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Zorfox is your calculator an exe?

It doesn't open on the iPhone.

Cheers!

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