Hello, Bud Production is always acombination of TIME, LIGHT, POTSIZE and Nutrients in the End. everything goes Hand in Hand
Lets talk about TIME.. I think you will have 4 moreWeeks or maybe more. Thats nice your Buds will develop and Mature in that Time. LIGHT I cant see anything about your Lights. in that Stage only more Light is more Light, know what I mean? think about adding Up your Light( but always a nice Distance). Then we come to the POTSIZE... The bigger the Pot-the more roots-the bigger the Flowers. easy calculation. You gave them 10 liters, That is ok. Maybe next Time one Size Bigger. And the Nutrients....Ok i think here you got enough of it. And its not one part alone and for sure not only the Nutrients that make big buds... Happy Growing , i gotta follow up to look