How Many led's

[lotsoftats]

Hey guys....How many led's should I have over my 15g nano? 20x15x12

Looking to keep everything....LPS.zoas,sps....etc.
also what would you led guys recommend for the blue white ratio?...looking for something like a 20k radium color.

 

[nanojg]

How high will they be?

 

[bboy aqua]

20-24 LEDs should be fine. As far as 20k alot of people do a 2:1, blue:white ratio

 

[streak]

Im running 12 6/6 rb/cw over my 10g with no optics i have about 6 inchs above the water line. I think Im going to add 6 more rb. im using buckpuks with pots. alot less hassel when working with low number of leds IMHO even though there more expensive.