Starting the EI system soon and have a quick question before I order ferts.
I have a 55 gallon goldy tank that I feel supplies all the NO3 anyone would ever want in a tank (maybe more).
In looking at the EI system, one of the components is KNO3. K is also present in the KH2PO4. Is there enough K in the second component that I won't need to supplement more if I forego the KNO3? I am also using Flourish Excel. Thanks!