They all come in DX versions. Its been primarily the 24 gal doing most of the cracking but the 12 gal seems to follow in the 24 gals footsteps pretty good a well. My LFS had been seling them and I co9nsidered getting one, and inquired about cracks..Their reply was they never had any. Hm.....then after about 2 or so months of kicking the idea of a NANO around I decided to get one........Much to my surprise, the LFS no longer carried them...as they had a buch that started cracking withing very short order after all that time without any real problems. That said, JBJ is now ocming ut with a new so called improved version of the NANO with different cooling, lights and "thicker" glass.....makes you wonder why they had to improve glass thickness when all along they were telling dissatisfied customers their glass was custom made to their spec and was actually stonger than any other tank was.........but they cracked like eggs, and now they have new improved glass and thickness.......
As nice and neat as a JBJ Nano cube is there are other options out there, which are just a good, but have better track records and peace of mind that trusting JBJ, even though they do honor a warranty, they just lied to their customers too many times to be trusted in my opinion. You can get an all acrylic NANO type cube on that big auction site for about the same price as a DX cube would cost.
