Nutes once every 2 weeks i find worksDefinetly flush your plants with water over the next few days,not a whole lot but enough to wash out some of the nutes.I recommend using nutes maybe 1 to 2 times a week.IF you see your leaf tips start to burn again back off for a bit.I am relatively new to growing indoors and it is way diff. than outdoors.Good luck with your grow!!!!!!!!!!!!!!