I know what you mean with the 12 gallon. I started with that same tank and it didn't take long before the itch to upgrade sat in. I bought my tank in stages which helped but it was hard to wait. There are some really good deals on craigslist so keep your eye out if you consider an upgrade.The only thing we are lacking are the power heads and the light fixture.
We don't have a skimmer but if I can get by with water changes then that isn't a problem. the 12 pod limits you tremendously for aqua scaping and I would love to do a nicer reef than what the nano offers for options. I have never had an open top tank before but as long as I don't add any jumpers it should work fine.
Your tank puts mine to shame. I love the Clowns!
Thanks guys! Can't wait for the tank to fill in a little more.Yes, looks seriously great!