lighting

[BlueTang]

can coral servive under a light with these specs?

50% 10,000K Daylight and 50% Actinic 03 blue
Self-ballasted
Low operating temperature

Look at the product here:

http://www.franksaquarium.com/54110-Mini-50-50.gif

 

[KahluaZzZ]

those one only sells in 10 or 20 watts . It's kinda weak...so you'll need a couple.
Since they're 50% actinics, it's like 50% strong light ( 10000k daylight ) + 50 % smooth and weak light. There is another coralife bulb almost like this one, but 6500k daylight with no 50/50..they shoot a good amount of light compared to those..you could mix anyways.
Those lights might be cool for a fuge/sump.
I think some mushrooms can be pleased with it.
If your tank is at least 18" , i've seen some helios t-5 like 100 watts for 50 CDN $ and if you're in the states, you can have them like for 35 $ with a fluo included..pretty powerful and so cheap.

 

[1979camaro]

what size tank and what coral?

 

[S.Reef]

Yeah, what size tank.

 

[BlueTang]

................. 5 gallon, if I was to use 2 of them, Ide have to get another 2 fixtures I'll have to cut the top, because it's built on, and the fixture now just placed on top and snaps in kinda.

 

[1979camaro]

i think you could keep low light corals on a single bulb

 

[wayne]

On the 20 yes, on the 10 it would be a bit tight