Is A Powerhead And Airstone The Same?

[aly_starh]

In a marine tank, does a powerhead and airstone have the same purpose? If not whats the difference?

 

[Luketendo]

In a marine tank, Is a powerhead and airstone the same? If not whats the difference?

No an airstone is a thing you put on the end of an tube connected to an air pump which diffuses air into an an aquarium.
A powerhead causes water movement (like a fan underwater).

 

[AK77]

Air stones

Powerhead

 

[aly_starh]

Hi, i know what they look like, i wanted to know what the difference was.

 

[chr15_8]

A powerhead moves the water about alot faster than an airstone would.

 

[SkiFletch]

And enjoy dealing with the salt creep of an air stone