i put my diesel ryder in 2 1/2 gallon
i couldnt really afford any bigger because of small veg area.. i think 3 gallon would def be big enough tho
pot size is def important ive been doin a little experimenting, guess it depends on how long you will veg and how big you want it to get....so for the white widow i think 2/12 gallon would be fine unless you are trying to grow a big tree
that boy "SICC" has some party cup grows that are crazy, guess pot size is a debateable subject
for me i like to start in cups bc its easy to water and hard to mess up
im so high...
so ya those pots will work id add more light tho...