Here’s our current seeding policy:
For public trackers, we seed until the upload ratio is 1.00 or for up to 1 day, whichever comes first.
For private trackers, we seed until the upload ratio is 20.00 or for up to 10 days, whichever comes first. (The ratio may change according to the plan you're using, you can check out our Plans page for more details.)
Longer seed times will imply that you will end up with more active torrents in your account. This might require you to have more torrent slots which are available in bigger plans.