As long as the Big Bud is the liquid,,,,it will work out ok.
Flora has the Fulvic. That's good, but I might drop the Flora and use SEA GREEN instead, for the Humic and the Fulvic, with basically the same NPK. This a STRONG up-take enhancer.
At week 5 or 6. I might be inclined to use a PK booster like Hesi or Ionic at 50% once a week till watering it out with plain water.