Photo and Siesta Periods


New member
Repost, wasn't getting a whole lot of attention in advanced discussions...

I was curious if anyone had any info on the photo periods of common marine algae. IE all you good and bad types of algae, diatoms, chaeto, HA, etc. Photo period being the amount of time it takes for these organisms to start photosynthesis from complete dark.

My reason for asking this was I read an article a while back about algae control that used a method called a "Siesta Period" The basic general idea was that it only takes about an hour or two for your corals to get going on photo and you algaes take longer, about 4 hours. So the idea was that you'd run your lights 4 on, 1 off, 4 on, or something to that affect.

Does anyone have any of this information, or has had any experience with this method?


In Memoriam
I would say that is no good Ken, ...

animals have adapted to the sun and moon cycles over millions of years, why mess with it? just keep your water in check, and you should not have an algae problem

Tang Salad

Algae skeptic
I think that's an interesting question.

Do you have a link or reference for where you heard that before?