Durable plastic valves offer smooth, precise control of airflow. The fishhook design, molded plastic hanger securely clamps tubing in place and leads airlines directly into the aquarium-eliminating tangles. Routing the incoming airline over the top...

Durable plastic valves offer smooth, precise control of airflow. The fishhook design, molded plastic hanger securely clamps tubing in place and leads airlines directly into the aquarium-eliminating tangles. Routing the incoming airline over the top...

The best choice for supplementary aeration in large tanks and primary aeration in small (five gallon or less) tanks. The cylindrical stone can also be used as a diffuser/circulator in undergravel filter lift tubes. Cylindrical 7/16" dia.

Improve aeration, circulation and appearance with this easy-to-install aquarium accessory. Place it just above gravel level at the rear or side of the aquarium to produce an attractive “wall” of bubbles. Made of porous tubing that is virtually non-clogging,...