How long is your photoperiod?

[brizzo]

1. 14" Depth
2. 150w HQI, 5" from water
3. Coralife clamp on, stock reflector
4. SPS and LPS
5. No media filter, or skimmer

My photo period is 10 hours a day, and I have some SPS frags about 3" from the water line that are colorful, growing, and encrusting. Pieces I have on the bottom are also doing well, along with Maxima clam that seems to constantly have new skeleton under its mantle

Though I find interest in this 6 hours per day theory, it makes sense with the muscle/workout analogy.

[michika]

I'm amused and interested to read that everyone has lowered their photo periods for the purposes of growth. I did it just to save some cost on energy bills...and it worked. I saw a $40 drop in my bill, which I can't 100% attribute to my lowered MH use, but I do know they contributed.

I also read the thread on RC that a lot of you are referencing. I noticed towards the end, or whenever I stopped reading it, that a lot of people were returning to their old photo periods, or commenting that the growth bursts seem to be short lived. I understood it that people saw some great growth and colouration, and then again it would slow down, but in most cases was still faster growth then when they were running 10 or 12+ hours of lighting.

[BC564]

I went to a smaller period to save money....be it energy cost or bulb life.....it all adds up...and if I get the same results.....its all good.