Size the pump for the filter
Air-driven sponge filters need enough airflow to pull water through the sponge. A pump that is too weak may provide little circulation; excessive flow can make a small tank turbulent.
Look for a pump rating and filter recommendation that suit the aquarium. An adjustable valve can help fine-tune bubbles, but avoid closing a line in a way that strains the pump.
Route tubing safely
Keep electrical connections dry and create a drip loop below the outlet. Secure loose tubing so it cannot pull the filter over or kink unexpectedly.
Check valves can help prevent back-siphoning during a power cut when installed in the correct direction. Test the setup after installation and keep spare airline tubing for repairs.
For your own tank
Keep spare airline tubing and a small check valve available if your design uses one. Route tubing so it cannot kink behind the stand, and confirm the pump remains above splash zones. A quiet setup is useful only if it continues to provide dependable airflow.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.