[APD] LED Lighting

["Andy Lavery" <wagoneer78 at hotmail_com>]

Hi all,

I must say, I've truly enjoyed reading the archives of this list though I 
didn't find specifically what I was looking for; So I joined so I could ask 
a question.

Has anyone tried to use LED lighting to light a planted tank? I've been 
researching this for the last couple weeks - I can't find anyone who's done 
it (Well, there might be some dutch/germans - but my knowledge of those 
languages is lacking). But I've found plenty of LED moonlights in fresh and 
saltwater aquaria.

To test the theory, having an array of 6 luxeon star 470nm lights - I put 
them on my 2g planted tank. The tank glowed well beyond what the current 2 x 
13w power compact could ever do. The fish definitely didn't appreciate it... 
I hope that was just the intensity & color.

I'm going ahead and ordering 20 ultra bright white (6500Kelvin) 5watt, 20 
degree 10,000mcd LEDs, in order to truly test whether this could work.

Of course I've got doubts running through my mind, I have to wonder if 25w 
of LED light is too much in comparison to the power compacts currently on 
the tank. How best to space the LEDs to get good coverage (I'm sure that 
will be trial an error - but the 20degree 'spotlight' like output is going 
to make things difficult). I don't suppose of the lighting guru's here - I 
might have some answers?

Andy

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