Penn Plax Action-Air Treasure Chest 0-15 - Small Under Gravel Filter as aeration helps to keep

as aeration helps to keep a small hole open in the surface of the pond to aid in degassing

1 - 11" x 28⅜" UGF plates

Each bag contains a packet of Bio-Magnet clarifier to reposition any free floating bacteria to where they are most active: sand beds

#70 in the series

Penn Plax Action-Air Treasure Chest 0-15 - Small Under Gravel Filter as aeration helps to keepAdd the excitement of action to any home aquarium with Penn Plax Action Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality. Watch the treasure Chest open and close releasing oxygenating air bubbles at the same.