The flower stuff you've hopefully already purchased.. something p-k like.. Plant still needs micros so don't cut out the micro nutrients but the higher P-K should be fed.... And love the nutrient Love is super important dare I say it's more important then nitrogen (it's not). :)
In flowering continue to give base nutrients for proper size and age for plants. But as flowering goes on add additional phosphorus and potassium for bigger denser buds. Good luck and happy growing 🌲🌲🌲👊