So, should I place a cover over the water on my 125gallon? hellolights.com says I NEED a glass cover between the bulb and the water. I've read all over here not to do it. My LFS
has their halides over open water, albeit roughly 8inches above. So, I'm going to assume hellolights is covering its legal behind, and that it is safe to put the halides 8" above the open water? Should my VHOs be closer? At the LFS
, they are the same distance. I think I'm going with 3x250w MH
+2x165VHO. Also, which is better as far as magnetic ballasts...probe start or pulse start? thanks!