Sensi Skunk Auto

If you have used well pre-fertilised soils, then you will easily have been able to go a few weeks without having had to use any liquid fertiliser. Naturally, your pregrowth period should not last too long, otherwise you will have to use growth nutrients. Many growers also continue to give their plants growth nutrients into the first or second week of the blossoming period because this is a sort of transitional period and the plants still have a great thirst for nitrogen and other building blocks for their rapid development. By doing this the plants will also end up somewhat bigger, given that the bloom feed stimulated the plants to switch their attention (and resources) more to bud formation than increasing their size. In this way, you can use your giving of nutrients to play around a bit with the eventual size of the plant. Right now yo have plenty of nutrients, Id possibly flush before switching over to bloom nutes. hope this helps

I do a flush just before flipping to 12/12 (you're past that though), and a flush two weeks into flowering (as the flowers begin to show, you're just past that). Looking at your plants though, they are not showing any signs of deficiency or excess - hurrah! In the happy state they look in - I don't think you need to flush just now, just switch to Bloom nutes and think about flushing two weeks from when you plan to harvest. By not flushing now you will keep some Grow nutes in the media (Nitrogen) which they will like a bit of during early Bloom which you're in now. They are a bit stretchy. I put that down just 250w of light in flowering, compared to the 600w you did in veg. They are going to continue to stretch for a bit, so consider some LSTing so you don't run out of space. Another side note is that your solution temperature is too low and will cool down the media and hence stunt growth. Make it ~22-24c going in to not stress her with cold feet! :)