wrote in message oups.com...
Have you been to www.nano-reef.com?
If you want to see pictures of a 70w MH working LOOK THERE.

Thank, I will look there, but 70W seems to be too much...
I had a quad power compact tube 96W and it was TOO much light.

Also... where have you seen a 20-30w MH?

Not in the fish tank market, but they are popular as small spot lights:
http://www.dimmer.de/shopping/art-8682.htm