quick question.. return pump and overflow box

[bOOsteN aUdI]

i have a quick question on overflow box and return pumps.. i havnt set up a new tank in a while and i can not remember.. my friend is setting up and tank and asked me what size over flow box and return pump he should buy.

does the pump need to be more then the overflow box or vise versa?

 

[Hot Slime]

pump gph has to be less than overflow boxes gph ratings.

 

[bOOsteN aUdI]

thank you