Dec 05, 2017

Estimative Index (EI) - Planted Tank Fertilization Method

Estimative Index (EI) is a simple method of dosing fertilizers to a planted tank. This method was originally coined by Tom Barr. The basic idea involves dosing excessamount of nutrients than plants need throughout the week and then resetting the aquarium by doing 50% water change on 7th day. After that repeat the process again.
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