The JBJ Nano Cube actually comes in three versions. A 12gal with 24watts of lighting, a 12gal deluxe with 48watts of lighting and a 24 gal
with 72watts of lighitng. For corals I would go with the 12 gall Deluxe or the 24 gal
. They all come with a built-in filter in the back. Basically if is three filtering compartments, the first one is for sponges, the second one is for bioballs and ceramic rings and the third one is for your heater and powerhead. For SW
, do not use all of the spnges or any of the bioballs and ceramic rings. Just fill the compartments up with LR
rubble. It if a much better biofiltration media. Check out my gallery for a pic of my 12gal nanocube if you are interested.