I did this part. Yay me!!!i plug the hole and feed as a flood and drain approach. this lifts the nutes up into the perlite and gives the roots a good soaking at feed. the method negates the need to feed daily in flower.
My Hempy buckets were 10ltr with five foot plants. They got thirsty fast. It was mostly during full flower that I was feeding once daily or they would get droopy. They were really close to the lights which made matters worse. The temps were around 90. Yuck.
No more giant plants VG!!!