Dosing 20gal - The Planted Tank Forum
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post #1 of 2 (permalink) Old 10-06-2005, 04:31 PM Thread Starter
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Dosing 20gal

Im getting really confused on using fertilizer calculators....I need to dose a 20gal tank with KNO3, Phosphate and Iron....the KNO3 is a dry fert and the others are liquid...Could someone tell me how much to dose for this tank?
thanks in advance

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post #2 of 2 (permalink) Old 10-07-2005, 01:55 AM
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You question is vague for an exact answer, there are a few variables.

General rule of thumb
Dry Dosing mAcro's.
Trace and Fe 1Tbsp per 250ml or premixed retail product's.
1/4Tsp KN03 per 20gal
1/16Tsp KH2P04 per 20g
5ml Trace per 20g
1-2ml Fe
all the above 3x a week

Assuming/depending on wheather you have good light, C02, and a good plant mass, once light intensity reach's a certain point, more plant's & nutrient's are required...

Light intensity should be governed for best result's

Take a gander thru Rex's guide for more NFO


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