Can you recommend a good skimmer for a 20G?

[Aquattro]

Don, the prism will probably be more thatn enough for a 20g, but think carefully about the future. Will you go bigger in the next year or so? You'll need a bigger skimmer if you do.
Also, with a 20g you can probably get by without a skimmer just fine. A 10% water change once a week won't cost too much!!