Rinsing activated carbon in filter bag

[hankn]

I bought new activated carbon (pellet form), added it to the filter bag and rinsed it. A huge amount of black dust came out with the water. I kept rinsing for about 3-4 minutes but stopped when it was somewhat clear. How long is someone supposed to rinse new activated carbon before adding to a tank?

 

[brads]

Rinsing new carbon serves two purposes. To get the dust off (taks as long as it takes) and for the carbon to absorb oxygen from the rinse water instead of your tank water which would deprive your fish of air. :dive:

 

[TKOS]

Rinse until it is clear. Same as you would do with a brita filter.

 

[Squawkbert]

It usually takes a while - this is normal. Post kiln carbon is pretty friable stuff (dusty).