General tonic what do i remove

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Chrisb2011

Aquarium Advice Regular
Joined
Feb 1, 2011
Messages
55
Location
Glossop
I no I sound thick I have the fluval u3 filter and on the tonic box it says remove carbon and zeolite (ammonia remover) filter media from the aquarium what do I take out? Is it just the blue box with the circles in?
And how long do I keep it out for
 
The carbon is the container with what looks like little black stones (maybe white and black if you have zerocarb) and the ammonia removed is white.

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