For a tank to cycle, it needs ammonia. The best thing you can do at this point is go to your lfs and ask them if you can have some seeded filter media from one of their tanks. Bring a Ziploc so you can store it in water for the ride home. Once you get home with the media, put it into YOUR filter immediately and add 1 ounce of pure, clear ammonia, or feeder fish like you said. This will help keep the bacteria alive until your fish arrive. By doing this, you will basically have cycled your tank in a day. The normal nitrogen cycle takes 4-6 weeks to complete (obviously you don't have that time). Once you receive your fish, take the feeders OUT of the tank while the bass are dripping in. You don't want them eating dirty feeders and getting a parasite. Never feed feeders unless they are from your own supply and have been fed and maintained by you for a couple of weeks. Try to feed them either small sinking pellets or floating hikari food sticks first. if they don't eat them, wait a day and try again.