I would do something like that if my tank was shallow, like 12-16 inches deep, but mine is 30" deep so I wanted some higher powered LEDs to penetrate better. And I'm experimenting with different led
's like different wattages, emitters, and heatsinks.
I started recieving some of my items. Here's what I got so far.
I'm still waiting on a large heatsink a few more 10w emitters, a power supply and dimmer.
I am liking the strips to put the emitters on that would make them like the long strip mentioned above just higher powered. I may order more of those. That way I can wire up strips of 6 LEDs at a time and it looks clean and professional, and they are not that expensive and I can mix match my own emitters.