In my opinion its cheaper just to run one large return than a small return and clutter your tank up with a bunch of powerheads.
Slower flow rates filter more effectively. Faster flow rates filter water less effectively, the trade off is that you're filtering and moving more water.
If your sump is large enough and has enough media it shouldn't matter.
Life's too short to worry about spending $5 extra per month to run a properly sized return pump.
Sent from my SCH-R950 using MonsterAquariaNetwork App
Slower flow rates filter more effectively. Faster flow rates filter water less effectively, the trade off is that you're filtering and moving more water.
If your sump is large enough and has enough media it shouldn't matter.
Life's too short to worry about spending $5 extra per month to run a properly sized return pump.
Sent from my SCH-R950 using MonsterAquariaNetwork App