Have you ever seen a tank so small ? It does not apply the drops of water falling on the floor randomly and did you change the water! We speak of 12 ml volume with sides NET only 3 cm, a micro-cube of 3 cm from the side!

Sure it may seem strange to talk about aquarium ... there are no fish, of course, lighting it, filtering it ... but there is a layout, there is a setup behind and seems just a short tank.
Maybe it's a "model" to an aquarium aquarium itself, however, is funny, and if we want a bell'esperimento also nice.

And these are the other Oliver KNOTT dwarfs , giants compared to this!