Here is my 10g. It's been going for about 6 months. It was my hospital tank! It has a 20" Current 80w PC fixture that came from my 44g when I put a 20" HQI on it.
You can see my next project in the last picture. I picked up a CPR AquaFuge hang on refugium with skimmer. This will add 3g to the system and provide a place to hide my heater.