Mixing Budswell with Other Ferts

I just started using budswell recently because I've heard so many good things about it. I have the tea. I've been using it at 1 tbsp. per gallon mixed with 1/2 tsp. per gallon of age old bloom (6-12-6). My plants are in the fifth week of flowering under 600 watt hps in fox farm ocean forest soil. Since I've been using the budswell they look a little more stressed, but I can't tell wether it's the nutes or something else. So, I was wondering, do you guys mix your budswell with other ferts or just use it by itself? If you blend it, what ratio?
 
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