Is 300 gph enough speed to function correctly for a 40 gallon reservoir filling a tray that holds 6 Five-Gallon containers? (flow tray is as deep as containers)

how much GPH is suggested for a 40 gallon reservoir?
Illusion Reviewed by Illusion on . 300gph for 40 gal reservoir (ebb & flow) ??? Is 300 gph enough speed to function correctly for a 40 gallon reservoir filling a tray that holds 6 Five-Gallon containers? (flow tray is as deep as containers) how much GPH is suggested for a 40 gallon reservoir? Rating: 5