so my tanks have been taking a rediculously long time to cycle. I'm finally starting to get a slight nitrate reading on my ten gallon that is fishless cycling for purposes of quarentine, however a petstore is letting me run one of my filters on thier tanks to get beneficial bacteria. By saturday the filter will have been running for a week, which I think is long enough to seed it properly. I'm getting a shipment of cherry shrimp in a day or two in the mail, and was planning on sticking them in my ten gallon that is fishless cycling. How long should I keep the seeded filter media from the petstore in the quarentine tank before it's ok to put in my 40 breeder. Is it the same for fish(a month), or is filter media less of a threat for contamination?