Before you watered, were the leaves drooping? Did they pick up after you watered? If yes and yes, she needed water.
Are those granular amendments? I wouldn't try making a tea with them, but that's just me. If they are granular, they aren't really set up to be made into a tea per se...but I'm only one man, others here much smarter than I, may have a different answer for you. If those nutrients are what I had to work with, I'd mix them into my medium per the instructions and handle this grow more like soil than hydro (coca and perlite are more hydro than soil). There are many who use dry amendments in coco / perlite with excellent results. For example, check out Mr. Canucks Grow on youtube...he uses dry amendments in coco / perlite with impressive results.