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so i have a tropical aquarium with live plants & snails. It is fully cycled, and has been fully cycled since November! I have an aquaclear filter with the media it comes with (mechanical, carbon, and biological) i was wondering if i throw out the carbon packet and replace it with more biological/ mechanical media will it crash my cycle? I know carbon can be bad for the fish once it starts going old, but im afraid if i throw it out i will ruin my cycle! ( does beneficial bacteria even grow in the carbon packet? ) thank you in advance!!