I know you're talking about teas, but until i get my witches brews (as dutch pimp calls them) down to a T, i don't want to share too much, besides bringing up the simple yet effective technique of just aerating your water for a good period of time (lets sat 6 hours?) before you feed your ladies. A simple fish tank pump, and air stone( I use an air rod cut down to the exact size of the bottom of my water container, which is a 16 gallon trash can) mix in your ferts/food/guano/pixi dust as well as you usually do, and then plug in the aquarium pump. you will mix your plants food more throughly then before, and the tiny bubbles help get some O2 to the roots, which they love. Your plants will thank you by reaching for and taking in more light.