PlantBoxer is correct; I know those ferts DO contain some sort of surfactant for foliar application.
7.0 is NOT the pH for hydroponics.
Hydro nutes can be found at any good grow shop, or mail-ordered from an online store. PLEASE use Google; it's the beauty of the internet.... :wtf:

I hope that everyone on this thread telling you that what you are doing is NOT going to work will push you to fix it before your plants die. You need to do a lot of reading; check the 'grow log' or 'hydroponics' section for logs and instructions.