-uv Stop!!??

[Bryan]

Good question, I suspect the term "UV STOP" is a translation that actually means UV Caution. The only DE bulbs that I am aware of that have built in UV protection are the latest Iwasaki DE bulbs discussed on RC . Unless you have expensive test equipment to test the UV level, better play it safe and use a protective layer glass. Will protect your bulbs from splash in any event.

[christyf5]

I agree with Bryan. Sometimes the translations on these things aren't exactly top notch. I would use glass on a DE bulb no matter what.

[bv_reefer]

-thanks but i won't have any corals or fish for a month so do u think it'll effect anything in a bad way during the cycling period, like small inverts and benificial bacteria?

[theredben]

Unless you are hanging your MH lights several feet above the tank( and like taking risks), glass sheets are a good idea to prevent splashes of water from exploding the MH tubes.

[christyf5]

Originally Posted by bv_reefer

-thanks but i won't have any corals or fish for a month so do u think it'll effect anything in a bad way during the cycling period, like small inverts and benificial bacteria?

Yes you'll be exposing everything in the tank to potentially lethal levels of UV light. I wouldn't imagine that much will survive.

[Mik_101]

Should he get a uv sterilizer?

[bv_reefer]

-uv sterilizers are for killing unwanted micro-organisms and bacteria, and
has nothing 2 do with blocking high amounts of uv radiation. But I still wouldn't mind investing in 1, in another 5-6 months...