Originally Posted by meudell
I've read about skimmers and do I need any special lights?
If you plan on doing any corals or anemones than lights are a MUST, if not lights aren't as much of an issue of tank health as they are visual preference.
A skimmer is never a bad thing to add on to a tank from everything I've researched, but if you don't overfeed and you do regular water changes, they aren't a necessity. I have a few new friends at the LFS
who have 10g, 20g, and 40g systems that don't have skimmers and are a few years old.