Radiolunatic
Guest
Just want to share what a broken bulb can do to your coral.
Last Friday when I got home (around 7:00PM) from work, I saw pieces of glass on my rockwork. I realized what heppened and soon I turned off that particular MH. A closer inspection after that reveal that most of SPS underneath it bleached. My MH is set for 5:00 PM to 10:00 PM, so the bulb must be on without the glass for 2 hours max. The next day, most of the SPS under that bulb went RTN. I lost approx 10 or so frags. The good thing is that under this MH are only frags (not colony size yet) and this can be worst if I detect it later. Water must got into the bulb somehow.
I have heard this kind of story before and now I have the first hand experience. I can see how UV can ruin your coral in a short period of exposure.
Last Friday when I got home (around 7:00PM) from work, I saw pieces of glass on my rockwork. I realized what heppened and soon I turned off that particular MH. A closer inspection after that reveal that most of SPS underneath it bleached. My MH is set for 5:00 PM to 10:00 PM, so the bulb must be on without the glass for 2 hours max. The next day, most of the SPS under that bulb went RTN. I lost approx 10 or so frags. The good thing is that under this MH are only frags (not colony size yet) and this can be worst if I detect it later. Water must got into the bulb somehow.
I have heard this kind of story before and now I have the first hand experience. I can see how UV can ruin your coral in a short period of exposure.