That is a big tank. That is A lot of expense. Wouldn't a 400w metal halide over this do a fine job for around 300 bucks? I suspect metal halide can handle the depth better than LED.
Actually not really. The opposite is true. LEDs have about double the output as metal Halides for a given wattage. And I don't want the heat/fire risk of a hot metal halide in my house nor the UV light they give off as its rumored to yellow some acrylics.