You can use this hygger 966 fish tank cleaner to suck away aquarium dirty water and move the gravel tube to clean the gravel, or install the duck-billed suction head to clean fish tank feces.
It’s not electric; it only uses the water pressure and siphon to drain or fill the aquarium with fresh water. With the pressure from the water, the gravel and sand can be sucked up into the gravel tube to vacuum out the debris in the gravel. It makes the water change quickly and neatly.
It comes with a 15/16″, M21, 3/4″ copper metal faucet adapter that fits on most faucets. Each pack comes with a 15/16″ copper threaded faucet adapter (large diameter: 23.8 mm), an M21 copper threaded faucet adapter (large diameter: 21 mm), and a 3/4″ copper threaded faucet adapter (large diameter: 26.4 mm)
You can choose the right size hose or cut it according to your aquarium’s needs. The cleaner comes with 3 hoses, 25ft, 33ft, and 49ft in length for various aquariums.
The water hose is flexible and durable, made of PVC material, and the inner diameter of the thick hose is 1/2 inch.
There is a porous filter sheet in the gravel tube connector, so no worries for small fish sucking.
It’s very easy to install; you can attach the water flow assembly and orange valve to the faucet.