How much fertilizers for a 20 gallon long? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 12-17-2015, 04:14 AM Thread Starter
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How much fertilizers for a 20 gallon long?

Hi,

As you may or may not know, I have a 10 gallon with a betta. Currently, I am running low light which is 15 watts. I have a 20 gallon long ready to be set up. I have 2 other light strips. two 15 watts and one 17 watt. That will be 47 watts on the 20 gallon in total. I don't have any money to purchase a co2 system, but I do have two bottle of API CO2 Booster. I have fertilizers including the following-
KNO3
K2SO4
CSM+B
KH2PO4
I have measuring spoon including tad, dash, pinch, smidgen, and drop. I know that the dash spoon has the wrong measurement. So how many ferts for this tank?
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post #2 of 5 (permalink) Old 12-17-2015, 05:14 AM
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its easier to do liquid dosing, so you mix it in like di or ro water.

https://www.plantedtank.net/forums/11...n-recipes.html

use 1/3 of those measurements. also thay may be too much light, you may have an algae farm.


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post #3 of 5 (permalink) Old 12-17-2015, 05:56 AM Thread Starter
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they are all fluorescent lights and wouldn't keeping a large plant mass keep algae away?
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post #4 of 5 (permalink) Old 12-17-2015, 06:52 AM Thread Starter
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Is this okay following the EI dosing method?

20-40 Gallon Aquariums
+/- tsp KN03 3x a week
+/- 1/16 tsp KH2P04 3x a week
+/- 1/16 tsp (5ml) Trace Elements 3x a week
50% weekly water change

What is the EI dosage for K2SO4?
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post #5 of 5 (permalink) Old 12-17-2015, 08:19 PM
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Quote:
Originally Posted by saeisbest View Post
they are all fluorescent lights and wouldn't keeping a large plant mass keep algae away?
possibly

Quote:
Originally Posted by saeisbest View Post
Is this okay following the EI dosing method?

20-40 Gallon Aquariums
+/- tsp KN03 3x a week
+/- 1/16 tsp KH2P04 3x a week
+/- 1/16 tsp (5ml) Trace Elements 3x a week
50% weekly water change

What is the EI dosage for K2SO4?
Low light and no CO2 simply use 1/3 of the dosing listed with the same 50%weekly water change.

the mix is for 500ml, so take that amount of teaspoon/mass and divide it by 3 to make a solution, or divide the dry dosing by 1/3 to get what you should dose

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)


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