Yup ... I have the 12gal. Nano!
I would caution you away from the 24gal model due to the fact that a lot of people have them crack because JBJ used the same glass thickness for all the models and of course the 24gal has a lot more volume and the glass isn't strong enough to hold that much volume!
The 12gal. DX comes equipped with everything you need. 48 watts of PC
lighting, 3 rear chambers and all the media. I tossed all the ceramic rings and bio-balls and filled the rear chamber up with LR
Here's a picture of mine!