Used in a fish tank for about half a year. The item in the last photo is unused. I cleaned it thoroughly each time with a thin brush and cotton swab. It works without any problems. How about it for those who are going to keep goldfish or turtles? * To reduce shipping costs, the box will be flattened for packaging. A quiet design with flow rate adjustment function, the KAME GENKI Filter supports up to 40L of water. - Brand: GEX - Model Name: KAME GENKI Filter - Water Volume Compatibility: Up to 40L - Quiet Design: Yes - Flow Rate Adjustment Function: Yes Thank you for viewing.