what size pump for a 120gal

[charliethetuna88]

hey everyone quick question im buyinh a all glass 120 r/r thank the flow rate for the overflows is 600 each it will have to overflows so total is 1200 gal per hour i need to get a pump for it i was thinking of a mag 18 0r a mag 9 do u think this will be good for my return i have a little gaint but if i use it i will have to get the glass cut in my 55 gal sump and i kinda wanna get an in sump pump thats y i was thinking of the mag