Whats is your night time flow ?

[twilliard]

At this moment I've a very circular flow:

< ---- < ---- < ---- < ---- < ----
.
.
.
.
---- > ---- > ---- > ---- > ---- >

I think a random crossflow is much more close to natural pattern.

Yes I have found its hard for corals to get fed and they grow funny

 

[cmcoker]

Same all day for me, I think it was advanced aquarist that had an article about it been detrimental to corals to reduce flow at night..

Here it is :http://www.advancedaquarist.com/2006/6/aafeature2

From that article :
If you had to breathe (respire) as a coral breathes,this would be the equivalent of holding your lungs outside of your body, inside out, and just hoping that the wind would blow hard and long enough for you to be able to breathe. This is how corals breathe in their environment and the scenario above illustrates the importance of water flow for adequate gas exchange in corals. This perspective might make you think twice about reducing your aquarium's flow at night.

 

[Berlibee]

And do you prefer Pulse mode guys?

 

[reefwiser]

I use pulse mode some it just makes the bearings noisy on one of my mo10qd the older one I upgraded the controller on. So only when not sleeping. [emoji3]

 

[Wy8tt_Earp]

Mine is the exact opposite of most people on this thread. I ramp my pumps up for nutrient export mode. My sps love the extra flow and most of my LPS aren't open as much once the light goes out anyway. I started thinking about increasing the flow at night after I watched an episode of Mr Saltwater tv. I tried it and have been very happy ever since.

 

[SaltMan]

Here is my current flow. I'm trying for two high and low tides per day at 6 second intervals similar to the waves breaking on the beach. My left MP10 is in front of my overflow and I use it to prevent food from going down the drain so its flow is slower than the left MP40, right side is synced together. I also use a feed mode where they all go 10% constant except the left MP10. Twice a day I run one each MP40 for one minute at 100% to stir everything up, right MP40 at 03:00 and left MP40 at 21:00.

 

[atoll]

Does the flow decrease on the reef at night? No. My philosophy to reefkeeping is , you can't improve on nature so mimic it as close as possible after all mother nature has had many millions of years to perfect it and you won't in a few years or tens of years so don't try.

 

[Duke4Life]

Hmmm...... I'll admit I turn everything off minus my return pump at 730pm and don't turn back on til 7am.

 

[atoll]

Hmmm...... I'll admit I turn everything off minus my return pump at 730pm and don't turn back on til 7am.

Why?

 

[renato120]

I dont turn it off but I use the night time mode from the jebaos. I will turn it off the night mode tonight

 

[.AcroKiller.]

Flow and currents do change at night on the ocean. Anyone that grew up near it knows this. You can clearly see it at night how the ocean Is much calm and smooth and not chaotic like day time unless there's a storm.

 

[Duke4Life]

Why?

I started doing this once the mini disc golf basket I made went in since the chains move in the flow, and my fish will sometimes sleep in the basket. So at night I kill my powerheads now to prevent the chains from hitting the fish while sleeping. I do have a few corals and none seem bothered and all open within 20 minutes of light and flow being turned on in am.

 

[.AcroKiller.]

 

[RAD01]

Mine is the same day and night

 

[Diesel]

In the last six years that I have ran my Vortechs I have tried all kinds of flow with never a bad results on my corals.
Night time or day time the corals know the difference between light off and on only.
For what ever you prefer to have you pump settings it will work as long you move the water.
The nutrients mode is set on my tank 4 times in 24 hours and from what twice at night.

 

[Robink]

Good info. I also have my pumps go off at 9pm, back on at 6-7 am, (except for the return). I have a mixed reef, no problems that I can see. But will be changing this when I get an apex...

 

[ksanfranfan]

I run my vortechs at various settings during the day but on long pulse throughout the night and early morning.

 

[salty01]

I'm currently running 2 gyre at night they ramp down to 30% constant flow during the morning at 8 AM they ramp up 75% pulse I'm thinking everyone enjoys this