Discussion Starter · #1 ·
Im looking into mixing up some dry ferts to start the EI method for fertilizing my 45 gallon tank. Im currently running high light and Co2. While using the online calculators on here I noticed that there is The Estimative Index option and the EI daily one. Does anyone know the difference between the two and which one should I follow? I just want to make sure its the right mixture for the 500l bottle.