[mike31154]

I use the night mode on my VorTech MP40's, works great. As far as I can tell I haven't harmed any of my livestock by doing so and yes, I'm saving money on reduced power use. As another bonus, the sound level drops at the lower power setting which is nice during nighttime. I'm sure there are plenty of variables in reefs in the ocean, some are in lagoons where there is surely less flow 24/7 than on reefs that are more exposed. I find it a stretch that we think we can replicate what truly happens in the big pond. Really depends on your livestock I reckon. Try it, keep an eye on what you have and if it works, be happy, save power.