Sherman those are some really nice looking zoos and really good pics wish I could get my pics as nice one day I will shell out the money for the camera one day.
I use a 250watt PFO HQI ballast and a 14K Hamilton bulb with a 55watt pc actinic.
When the mh is on the actinic makes no difference, I just like the before and after look on the tank.
Finn one day when I have time to learn how to use the camera I will be able to compete with you. I started a thread in the photo section if you have any pointers.