I am wondering what filtration I will need

[nyreefer758]

I am about to set up a 20 gallon reef tank (first one). I am wondering how big of a Refugium or GFO I will need if I have a fire fish and a pair of clowns with about a little less than half a cube of mysis or flakes/pellets a day. Thanks in advance.

 

[blaxsun]

Hard to say, as there are so many factors like substrate, rock, corals, etc.

 

[131696]

No filter system just do water changes and you will be ok