Aquarium Filter Small Betta Fish Tank Filter For 2-15 Gallon Silent 4-In-1

Rotate the knob to change the airflow. Fish-friendly & widely applicable. The fish filter reduce the number of tank water changes. It is suitable for both fish and turtle tanks No replacement is needed [Easy To Clean & Durable]: quickly assembles and disassembles, impeller cover and impeller are visible for easy maintenance. Rinse the sponge every 2-4 weeks with aquarium water [Fish Frolic Happily]: this fish filter has two modes; rainwater and aerator. 1st. The waterfall-style design increases oxygen and energizes the fish [Wide Apply & Low Noise]: can be used as a betta or turtle tank filter, both suitable for saltwater and freshwater. [1-YEAR AFTER-SALES SUPPORT]- You can contact us first with any questions or problems