Pumps, head pressure and flow questions.

[Braxfan]

Hi!

I have a 540L tank with a diy sump with a JBL proflow u2000 pump. I feel like I get way to little circulation through my tank. I read about flow and head pressure and how they effect each other. My plan now is to either replace the pump with a bigger one that can pump 2000L/h at 130cm head pressure or buy one more of the same and put them in series or parallel.

My guess is that I will get better effect by putting them in serie but what does the pros say?

BTW here is the head/flow chart fo the pump in question.

 

[Frank the Fish guy]

Use pumps in parallel to get more flow. This will move more water through your filter which is what you want for your aquarium filter.

Parallel pumps will also give you some redundancy so if one pump fails, your filter will still run. Series pumps are more failure prone since both pumps must work.

Some of the efficiency increase you will get by running in parallel is because of the extra return line you will need to add. Less system losses. You don't get that if you run in series.