5x10 flood tray or a couple of smaller ones,if i was you i would run 2 different trays just in case something happend with one then you wouldnt loose the whole crop,but thats just me,maybe 2 4x8 and one 3x6 table with its own reservoir if this was a continuis flowering room that way you would be able 2 have different tables and nutrient solution supplying the different ppm needs of the plants