You’re right that you should do something like feed then water - or feed, water,water..
I would recommend using more than just the flora micro tho.. it’s a great source of nitrogen and micronutrients, but soon your plants will have used up most of the available nutrients from the soil and need more than what the flora micro can provide. Especially heading into flower.
I’ll preface this by saying your plants look great when I glanced through your two recent diaries.. but the GH flora series was made to be fed to the plants as a three part series.. as you move towards bloom phase it will be vital that you have more than just the flora micro to supplement the soils nutrients..
All looks well now but as you move forward you will likely need more than just the flora micro nutrients as the soils natural nutrients are used up by the plant.