Have you seen the Flora weekly feeding chart? Tiz a "good place to start". You have likely OD'd them a tad by giving all three at 1/2 strength. That and the additives are likely stressing your ladies a bit.
Check the feeding schedule here: Flora Nutrient Weekly Feeding Program - Greentrees Hydroponics
To convert the ounces to teaspoons, check here: Ounce to Teaspoon Conversion - Convert Ounce to Teaspoon - Volume Metric Conversion (.15 oz equals approx 1 teaspoon)

You might also want to raise your ingoing water ph to between 6.3 and 6.8ish. Wander outside that ph range, and you'll start locking-out various nutrients.

Rinse the Neem off after every treatment. It can clog the stoma's.