I have a used JBJ Nano Cube 12 gallon. Its been used for a few years, no cracks in the aquarium. The lid has no blue led lights but can be connected for them. Fans have been upgraded for more flow, the clear cover for the lights have a crack but never effected the lights. Comes with a stock pump, pc lights need to be replaced, ballast still in good shape. All in all, its a good start up tank. Asking 150 obo.