COR-20 overkill for RSR-250?

[carlsj2012]

As I gather up my finalized parts list, checking compatibility,etc, I'm wondering if the COR-20 is simply way too much flow for a reefer 250?

I know it's a variable speed pump, but with Red Sea recommending 790gph and the APEX rated at 2000gph, wouldn't I just be running it at minimum speed all the time?

 

[PeterC99]

Cor-15 will be perfect unless you think you will be upgrading your aquarium in the future.

 

[Water Dog]

I would get the bigger pump. As you mentioned, you could always turn it down. Remember, head height will have an effect on you flow rate as well, especially with DC pumps.

As an exampLe…

https://www.reef2reef.com/threads/a...t-250gph-with-a-vectra-s1-return-pump.481957/