Lighting Question For Solana

not sure, I had a 250w, and a 150w de halide over my solana at one point or another both worked. You can proboly also get an AI Sol Nano, if you want to go led.
 
That's only 21, 1 watt leds. Might be ok for sps within the top half of the tank and directly under the light. Don't really think it's enough light for a reef in a 20" deep tank.
 
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