View Full Version : light schedule

01/15/2007, 09:52 AM
Later today I am going and picking up my new lighting. 8 x 65 watt PCs. I am interested in how I see some tanks set up to mimic the movement of the sun and I also thought that It would help keep some of the heat from the tank down. But then how should I rig this up with this many lights?

I was thinking having the blues come on at 6:30am, then the whites at 7:00
am, then the whites off at 7:00pm and the blues off at 7:30 pm. But then that wouldn't keep the heat down too much. Would the loss of the constant light be bad for any corals? Would it slow down growth?

01/15/2007, 10:53 AM
...does ne one know?

01/15/2007, 11:01 AM
Here's the light schedule I use on our tank, in case it helps any...

8am actinics on / moonlights off
10am daylights on
7pm daylights off
9pm actinics off / moonlights on

IMO, 12 hours of full-on light is too much. With the above schedule, we don't have heat issues with our PC lighting (only 4 bulbs, but also a slightly smaller tank -- 90g). By that, I mean a fan blowing on the sump is the most I need to keep temps good during the summer.

I'm not sure I understand your question: "Would the loss of constant light be bad for any corals?" Please clarify.