Fertilizing

Fertilizing FAQ

Please ask questions regarding fertilizing here.

What are Macro and Micro elements?

http://www.apsa.co.za/xenforo/threads/fertilizer.93/
#10

What is EI?

EI stands for Estimative Index.

Quote from James' Planted Tank
For more EI related info on APSA, please read the following:
Demystifying the Estimative Index
EI for dummies..
#3
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