Powerhead "Night Mode"

[superduperwesman]

Originally Posted by Slick Fork

I have zero direct knowledge about this and while I agree that the calm ocean night is probably more turbulent then our day's I would think that it's the change that's important.

Also, as far as gas exchange goes I would be willing to bet that the skimmer and/or drop into the sump provides the vast majority of gas exchange in the average reef system. JMHO

Also good points... I wonder if the change is important?? i know some people shut the pumps off to feed.

I don't have a skimmer and there isn't a drop to my sump but I guess some exchange would still take place as it goes into the overflow

I don't even have a night mode on my pumps... but the theory interests me