If its what im thinking of im sorry to say they are basically junk. Hopefully im wrong but is it like a 2inche wide tank that hangs on the wall and is ment to look like a picture frame?? If it is they are useless for anything but goldfish or guppies and i would still feel bad putting them in there.
Its to deep and skinny and doesnt have enough surface area especially for Saltwater.
As i said hopefully it something else but you will have to be more specific.