Totally. At one point in 5 Gallon Linen bags I was feeding 3 litres each plant twice a day.at this point you may need to feed twice to multiple times a day in coco. once a day doesn't usually cut it for a larger maturing plant. coco needs fed multiple times a day in late veg and in flower for sure. throwing a higher ec at it and only feeding once a day doesn't work in coco.