DIY LED layout on a 20" cube???

[Cubeman]

I'd like to know what you end up doing with this light build Rob, seeing as I just bought the same tank from you and would also like to try my hand at an LED build.

If I spent $300 and ended up with the disco ball effect, or insufficient light for sps I'd be ticked, so am looking to learn from your experience. It will likely be a late summer project for me so you've got lots of time to experiment!

cheers
Paul