2 pieces per pack
Replaces many air stones in common box filters and undergravel riser stems
The Power Agitator
Flexible, porous air tubes with large surface area
Provide powerful aeration and water agit...
Allows cleaning of inside glass without using hands in the water
Powerful magnet on the outside
Safe for fresh or salt water
Non-abrasive cleaning pad will not scratch
A well balanced variety of freeze-dried food
When added to water, the block slowly dissolves to provide a time-released source of food during an aquarist`s absence
Neutralizes pH and purifies water
Sufficient for abou...