Dip in lighting

[the_chef_pierre]

I've noticed some people using apps like the pro version of the fluval marine 3.0 app make their lighting dip dimmer at some point in the afternoon but I dont know why? Is this beneficial to corals rather than just having it ramp you then down at the end of the day? Can some explain why the dimming in the afternoon?

 

[the_chef_pierre]

Anybody? I cant find info on this anywhere

 

[oreo54]

A "siesta" period is thought to be beneficial.....skip that too complicated
I've really only seen the "argument" w/ fw planted tanks..
https://barrreport.com/threads/split-photo-period-siesta-pros-cons.4693/

Not sure how it would effect corals though the belief of allowing a CO2 re-build when photosynthesis drops "may" have a benefit..

In fw the thought, in part, is a dip in light favors higher plants over algae..for whatever reason.

Well there is this re: corals..

Photo period

Right now I have a 11 hour photo period. This is only because I read somewhere to use between 10 and 12. So, being the dork that I am, took it literally. I've read some tank theads with 8 hour photo periods, some with 12. I understand we're trying to simulate nature here, but any other reasons? M...

www.nano-reef.com

This is a quote from Practial Coral Farming by Miguel Tolosa

4 on 8 off light cycle
There have been some experiments exploring the benefits of maximum Zooxanthelle alage production by using a alternating light cycle of 4 hours on and 8 hours off.

The Journal of Experimental Marine Biology and Ecology Found that Motility, Or growth, In the cells of Zooxanthelle alage " occurred only during the period of illumination and lasted 8-9h, with a peak at 2.5-4h after lights on." It is this peak at 2.5-4h that has given rise to farms based on the 4 on 8 off light cycle. there has been increased coral health. The amount of growth depends upon the corals being farmed, but nearly all coral show marked improvement using this light cycle.

You can find this article in the Journal of Experimental Marine Biology and ecology Volume 298 Issue 1, 7 January 2004, Pages 35-48

http://www.sciencedirect.com/science?_ob=A...e275ae882467702

 

[the_chef_pierre]

Awesome. Thank you for this info

A "siesta" period is thought to be beneficial.....skip that too complicated
I've really only seen the "argument" w/ fw planted tanks..
https://barrreport.com/threads/split-photo-period-siesta-pros-cons.4693/

Not sure how it would effect corals though the belief of allowing a CO2 re-build when photosynthesis drops "may" have a benefit..

In fw the thought, in part, is a dip in light favors higher plants over algae..for whatever reason.

Well there is this re: corals..

Photo period

Right now I have a 11 hour photo period. This is only because I read somewhere to use between 10 and 12. So, being the dork that I am, took it literally. I've read some tank theads with 8 hour photo periods, some with 12. I understand we're trying to simulate nature here, but any other reasons? M...

www.nano-reef.com