black light??

[magicman4904]

I found a black light, and i was wondering if it would hurt my Corals or fish if i just ran it at night?? i have a 125 gal saltwater if that makes any difference.

 

[gmann1139]

I have heard, and this is purely hearsay here, that long-term exposure to blacklights isn't good, because of the near-UV spectrum involved.
This is why you see 'moonlights'. They achieve almost the same effect, but are good for the corals long-term, unlike blacklight.

 

[draconis321]

black lights don't work on tanks they don't make any glow in water get some moon lights they'll get that glowing effect u want

 

[wattsupdoc]

I think Banguy did a lil study on black light effects. If I remember right the results were detrimental to corals. Was it a frogspawn in the test Bang? I cant recall exactly. Don't use it though. Get moonlights or run actinics for an extended light cycle, then moonlights at night.

 

[bang guy]

I don't think black lights harm anything.
It will make the water look cloudy. Something in saltwater fluoresces. Shine it on your salt mix and you'll see what I mean. It's not attractive to have cloudy water.
They will make fluorescing corals look like they have batteries! Even coralline glows brightly. You won't like the murky water though IMO.

 

[saltfan]

What we call Actinics are: in nm light spectrum 420nm actinic 460nm actinic
What we call Black Lights: in nm light spectrum 400nm black light.