To reduce noise from your aquarium filter, you can try the following:nn1. Ensure that the filter is properly installed and secured.n2. Check for any obstructions or loose parts that may be causing rattling sounds.n3. Place rubber or foam pads between the filter and the aquarium to dampen vibrations.n4. Consider using a filter with adjustable flow rate to minimize turbulence and noise.nnIf the noise persists, consult the manufacturer or consider upgrading to a quieter filter model.