When choosing a powerhead, get something that will pumps twice as much water per hour as what’s in your tank. Sponge filters are ideal for delicate tanks.
You can find filter sponges in pet stores and fish tank stores. Consider getting a sponge with larger pores. They are better at housing the good bacteria, which help clean your tank. Sponge filters are ideal for shrimp and betta tanks. They are bio efficient, but don’t create a lot of suction or water movement. [2] X Research source
You can find plastic tubes at fish tanks and pet stores. You may also find them in home improvement stores.
Make the hole just a little smaller than the airline tubing. This will give you a tight fit.
The more powerful your powerhead is, the larger bottle you will need. Bottle filters are great for large tanks.
