STEP ONE
Once the water pump in the filter space is switched on, clean water in filter space is pumped up to the viewing tank via the water supply piping system, rising the water level in the viewing tank until it reaches the underneath of the top glass plate seamlessly to provide a crystal clear top view.

STEP TWO
Excessive water in the viewing tank overflows to the table flange, where it falls to the filter space at the bottom.

STEP THREE
The flowing water creates a large surface area which allows oxygen to dissolve. This is how oxygenation occurs.

STEP FOUR
Fish waste and uneaten food, which will prevent filtration from taking place effectively, is filtered here, by wool.

STEP FIVE
The water flows through a number of filtering compartments, in where filtering materials are placed to remove toxic substances in the water biologically.

STEP SIX
The filtration process ends in the final compartment where the water pump is located, which pumps the filtered water back to the viewing tank. This is another circulation.