Matala Hakko Air Diffusers with Included Base Package so it is not suitable

so it is not suitable for pond aeration

lunar and off settings)

Enjoy the benefits of barley straw without the mess and without the wait

Pond Digger Beneficial Bacteria has over 1 billion colony forming units per gram

Can be connected to 3/8" diameter weighted hose and has three sized barb options

Matala Hakko Air Diffusers with Included Base Package so it is not suitableMatala Hakko Base Air Diffusers are membrane air diffuser assemblies that feature heavy duty plastic bases with soft edges. These bases are hollow so that they can be filled with sand or gravel, eliminating the need for bricks and straps to get the diffuser to sink. Two sizes of bases are offered: the small base can accommodate one or two diffusers, and the large base can accommodate two or four diffusers. Heavy duty diffusers produce medium bubbles,