Do you mean running a previously established canister filter on a new tank? Is so, depends on the bio-load. Also, the bacteria are not just going to bail out of the canister and take up residence in the new tank, that will take time. If there is no hurry, and if the bio-load is low, I would keep the canister on at least 6 weeks and then spot check for ammonia after you pull it.
JHemdal