Since I have a shrimp aquarium with white small pebbles and it is very difficult to clean.
I was amazed how well everything works when trying out the device.
Simply everything fitting together in 10 seconds and there you go!
The container into the water and shake, then the equipment automatically draws in the water.
Through the tube, the water flows very well.
In the suction tank, you watch the undertow of the water, looks like a small tornado.
After the 10l bucket was filled, I was amazed at how dirty the water was disgusting, although the aquarium water was crystal clear.
So a lot of dirt and sludge was just on gravel * disgusting *!
The now green-brown gravel balls were after washing again as white as when buying.
Therefore, I can recommend this method much for fish as well as for shrimp !!!
Even when I once had sucked a prawn with this no problems had to swim back to AQ without injury.
Absolutely top!