What net pots should i use for this dwc (Pictures)

Hi was just wondering if i could get some help on trying to figure out what net pots i should use in this dwc the green pots are 90mm x 80mm and the black pots are 160mm x 115mm which ones would be better to use? little bit stumped here as this is my first time building dwc or even going to use one just trying to get some feed back on which pot is the better choice.

Thanks in advanced for any help or advice.