Eiw/oGH
Contains the following:
This NPK fertilizer for aquarium plants is designed to be used with the EI (Estimative Index) dosing method.
The fertilizer package includes:
The NA EI Method includes the CSM+B and GH fertilizer(optional). It is based on the idea that excess nutrients will not harm anything in the tank. So even if you had a low light tank and were to dose 3x per week with the GH fertilizer at the full amounts, as long as you kept up with the 50% weekly water changes it would not cause any problems.