Day Vs Night water movement

I only keep my canister filter and power heads on at night because im a lite sleeper and my skimmer sounds like a lawn mower!!! thats the only thing i turn off at night besides my lights(excludes moonlights)

 

Well, let me ask one simple (or not...) question:

What ENERGY creates these extra-strong night time currents?

Tiadal flows occur twice a day in most locales, so there would be a few hours of stronger flow both throughout the day AND the night. The only "extra" energy that enters the system in ANY typical twenty four hour period is solar powered wind, which builds waves which in turn, affects the currents and flow across inshore areas. All this extra energy dies out as the sun drops lower, and more often than not the wave activity is further flattened out by now warmed land creating off shore breezes.
As for whatever "professional reef keepers" agree on, that is a very short list!
;D

 

The Reef Keeper 2 controller that we used for a 75g tank has a night setting for the wave feature that doubles the run time of the wave maker PHs, reducing the rate of change, but not the flow.... result: much higher PH failure (likely caused by cleaning PHs only when they failed to run)....

For the 120g that we are setting up now, the closed loop system will run 24x7 through a 4-way OceansMotion valve... no extra effort is being made to change the flow rates between day and night....

 

On that we agree 100% ;D

 

We can also agree on the fact that most corals do indeed feed at night. There are multiple causes for this, but a main cause is simply protection. All of the critters that could harm or eat the softer filter feeding portion of the corals have gone to bed, so they are free to extend out into the ocean.

I was a Tennessee Aquarium Volunteer a few years ago and we were forced to watch a video on polyps several times. This was way before going with a SW aquarium in our house.

 

That makes sense! A longer wave cycle due to the lower energy after dark.

 

Or to ensure the corals are fed when they prefer to eat, at night.....when the current is stronger. ;D

 

there are a few of them, the moon for one. Also, the number of tides seen is influenced by the shape of the coast line as well as sea floor elevation among other factors. Not all coastlines have two tides, some have only one.