This is AWESOME! The instructions said, "use a gal jar and a type of stand place the jar in the water on it's side, let it fill with water(completely sbmerged) then tip it up slowly bottom up, and place the jar mouth into the stand, making sure to keep the mouth under water. The fish can swim up into the jar as they wish.
The stunning Volute water feature by Tills Innovations. A vortex being captured and displayed in clarity and detail. What appears to be a solid piece of glass with a spinning vortex. A mesmerising water feature.