bio in a canister filter

[iloveoscars702]

That's mainly in sumps since there's lots of room for a bunch of them as opposed to in a canister. They basically act like bio balls for bio filtration. They have a lot of surface area for bacteria to grow on and are cheap!

They also make a great final stage for mechanical filtration... If you stack them right... overlapped like bricks on a brick wall prevent a lot of loss due to bypass...

can anyone tell show me a link on what these pot scrubbies look like?

 

[davidtcb1]

Here's an over the top example... http://www.monsterfishkeepers.com/forums/showthread.php?t=165081

 

[iloveoscars702]

Here's an over the top example... http://www.monsterfishkeepers.com/forums/showthread.php?t=165081

thanks