I start using sugar royal from flowering flip,stop at week 4 of flo,from then on start green sensation every feeding and 1 sugar royal session every 3 feeding.works well for me. very expensive yeah unfortunately. it has a deep green color but when mixed makes the solution golden
btw do not abuse use of sugar royal :D 9-0-0 npk ratio causes N toxicity. once a week is ok for it. green sensation is every feeding