How much flow for a retail grow out tank?

[joekidwell]

I'm going to purchase some used retail display tanks that are 4' acrylic with 4 12×18 divided sections. There is a return on one end and a drain on the other.

I will have a holding tank underneath full of live rock. Do I want a high turnover or should I slow it down to allow time to filter? It will be heavily stocked with baby clowns.

 

[CoralB]

Well since you wouldn’t want to pin the babies to the side of the glass I would say getting a vector s2 ecotech DC pump would allow you to tweak the flow or a similar Smaller DC pump