need some help

[angel2007]

i just started a seahorse 20g seahorse tank, and I started to place some corals in the tank, my question is do I need a protein skimmer? if so wich one would be a good one?

[JustADude]

can you give us more information about you tank ? some people have gone skimmerless with out problems really, can we assume you have no sump ? do you plan on upgrading to a larger tank ? 20 gal tank is rather small , you may even DIY a skimmer ...