I set my Hydra 52's to about 80% on all colors. I find that this give a very natural looking effect. I'm not a big fan of tanks that use a lot of blue and violet, because it makes everything look very fake, even when it's not. I use a 1 hour sunrise and sunset. I run the lunar cycle option because it's there. I don't use the weather option because I always think something is broken when it's in effect.