Skimmer / Sump Question

[jbishop]

I have a ETSS Evo 500 with an upgraded pump pushing ~950 GPH

Currently I have the sump turnover at ~950 GPH also.

I know the general rule is to match the two, but what if I went slower with the sump turnover lets say ~600 GPH?

Are there any down sides to running the water slower?

TIA

 

[jrmx635]

sumps

There are some unbelievable tanks that run only 2x turnover in their sumps and there are unbelievable tanks running 10x turnover.
I have had real high flow and real low flow sumps and seen no difference.
the only thing that seems to respond to too high a flow is the refugiums.
your skimmer will pull the same no matter which one you choose.
you really don't have to match the flows.
also the etss 500 running a 900gph pump only flows aroung 500 gph after the pressure factor.

 

[jbishop]

There are some unbelievable tanks that run only 2x turnover in their sumps and there are unbelievable tanks running 10x turnover.
I have had real high flow and real low flow sumps and seen no difference.
the only thing that seems to respond to too high a flow is the refugiums.
your skimmer will pull the same no matter which one you choose.
you really don't have to match the flows.
also the etss 500 running a 900gph pump only flows aroung 500 gph after the pressure factor.

Thanks for the info. Looks like i am going to run ~600 GPH through the sump.

 

[afboundguy]

J I forget if you run a fuge or not (all drugged up on cold meds) but one benefit of running slower GPH through a fuge is that it gives the nitrate exporter (cheato or anything else one would put in a fuge) more contact time with the water so it sucks up more nitrates...

 

[jbishop]

J I forget if you run a fuge or not (all drugged up on cold meds) but one benefit of running slower GPH through a fuge is that it gives the nitrate exporter (cheato or anything else one would put in a fuge) more contact time with the water so it sucks up more nitrates...

Part of the sump is going to have about 20 Gal fuge

 

[stingythingy45]

J I forget if you run a fuge or not (all drugged up on cold meds) but one benefit of running slower GPH through a fuge is that it gives the nitrate exporter (cheato or anything else one would put in a fuge) more contact time with the water so it sucks up more nitrates...

This is true.I've heard all kinds of discussion about chaeto needing to roll in the current in a refugium.But my fug. only has about 30-40 gph running through it and I double the chaeto every 2-3 weeks.I just went to a 20L from a 10 gallon in hopes I wont have to trim so often.