sps and flow

[Reef Pilot]

I have 2 WP40's and 2 Coralife DC5800 Wavemaker pumps running in my 100g SPS tank, as well as my return pump flow. That makes for over 6000 gph flow in the tank. All the wavemaker pumps run on turbulence and random flow during the day, so that really mixes up the flow patterns. Then at night the light sensors direct the controllers to dial down the flow (but not shut off), so the corals and fish all get a rest.

[asylumdown]

Well, ocean currents don't necessarily take a break at night (though it's true that in some places things can get calmer), so I think most SPS corals can handle lots of night time flow no problem. However, if you turn the current down you'll notice quite a bit more night time polyp extension. I'm sure long tentacled LPS will appreciate the reduced flow, though most of mine retract almost all the way at night regardless of what the flow is doing.

I turn the flow in my tank down at night mostly for a single fish that seems to struggle with too strong of a flow at night.

[Aquattro]

I have rather complicated flow timing, but I do back off at night, more so to give the fish a bit of break for sleeping. If they sleep

[Reef Pilot]

Originally Posted by Reef Pilot

I have 2 WP40's and 2 Coralife DC5800 Wavemaker pumps running in my 100g SPS tank, as well as my return pump flow. That makes for over 6000 gph flow in the tank. All the wavemaker pumps run on turbulence and random flow during the day, so that really mixes up the flow patterns. Then at night the light sensors direct the controllers to dial down the flow (but not shut off), so the corals and fish all get a rest.

Whoops, meant over 12,000 gph flow inside the tank.