indoor bucket size

[beast]

thank you for your help ! I am using 3 gallon pots now, which didnt get root bound before but now that im getting ph down to 6.8 to 6.4 and using nutrs. pro bloom ,sweet,sucanat cane sugar, I have yellowing and curling up in flower stage and have seen this as my girls mature in the past.
Buckets are root bound now... flowers dont look bad but the leafs yellowing conserns me...5 gallon pots ?
Thank you...beast

 

[Zonkerly]

If you veg for 2 weeks or less,then 3 gallons are fine. Longer veg I would go 5 or bigger to prevent root bound up.Give them plenty of space to expand in for healthy root system!!