Current USA Orbit Marine LED

[bsung413]

I have two running in a 10G and a 20G long tank.

In my opinion I think think is a perfect lights for nano especially a tank not that deep

I was able to keep LPS some SPS and most softys.

As for sizes, you might want to consider going for 48" long since 24-36 will only cover the center area for your 20 long not the sides on both ends

Hope this help, if u have any other questions feel free to pm me

FYI current USA will have a pro verson of this which you might be able to keep more SPS or clams

Berny