Uv security light?

[dunl]

Originally Posted by Bloodasp

To use it as a sterilizer yes, to light the tank, no. They will harm your tank more than you think, for one there's a reason why they tell you not to stare directly at a UV light and/or blacklight (which is what those security lights are), the effect would be the same with fishes.

Okay, that makes sense, but don't MH light put out at least some UV light? It's about an 8" long bulb, very small....I figured it might be a nice moonlight. Especially when I have seen some freshwater people do this.