What can this be leafs turning yellow with purple edges

Your ratios are a bit weird for GH trio. For flower they recommend 5ml Grow, 10ml Micro, 15ml Bloom per gallon. I never mix at full strength but always keep the same ratio. Typically I do half strength- 2.5 Grow, 5 Micro, 7.5 Bloom. Even though bottles are labeled "grow" and "bloom" you'll see that they each contain other things too. The grow has an NPK of 2-1-6 while the micro is 5-0-1. The bloom makes the most sense at 0-5-6. This makes tinkering with the formula a little more tricky without throwing other things off. You're probably a little lacking in phosphorus, which can exasperate a calcium deficiency since they work together.

I used to use the GH 3 part series for years with great results. I'd recommend upping all 3 to 5ml for the next couple feedings and use the Calimagic with them 5ml/gal. Looking like a Calmag issue but also seems she's hungry. Happy Growing