Hi Rocky and welcome to TFF!
Yours is a clear case of lack or -real- information about how a tank works and how to get one started! We see quite a few of these cases every month. Gosh, what a bunch of contrasting circumstances:
1) You've got the desire. You've waited and anticipated and now have a nice tank and are ready to go with the hobby, Great!
2) You've gone to the local fish shop and bought some bottles to help get the tank started, most of them have not helped and basicially did nothing more than add to your cash register receipt!
3) You've gone to the local fish shop (LFS we call them) and they're nice enough folks but somehow the info they've given you is dead on opposite very often of what you should be doing. We see this every week. It may take a few weeks before you trust that there's this contrast between LFS information and information you get at a place like TFF, but eventually you may come to be amazed.
4) You've searched the internet and stumbled across this forum, read some, made an ID... in my opinion - luckiest thing you could ever stumble across, if you want to be a real hobbyist! The members here are great. They'll get you sorted.
Just to reinforce or add to things others have said, your most urgent thing at the moment is to do large water changes (50 to 70% for the first few) with good technique (use your conditioner and roughly temperature match with your hand for all the return tap water.) This is to try and hold down the damage to the gills and nervous systems of the poor fish they've had you dump in with the toxins of a new tank.
Meanwhile, your first homework assignment is to find the Beginners Resource Center up top in this same subforum and read your first three articles: the Nitrogen Cycle, the Fishless Cycle and the Fish-In cycling situation. With these you'll begin to get a glimpse of how much the LFS has over-simplified the story of tank startup to you. But don't worry it'll all get worked out!
Note that one option here is to test your reverse salesmanship and see if you can gently coax the LFS to "take back" these fish! A good approach is to be friendly and joking a bit perhaps, but firm, and tell them you'll be back to more before very long! (The LFS is still important to you because its a place close by that you can go to buy fish and get things you need quickly. Its just not a place to actually seek advice!) If you are successful at that you can do a fishless cycle and not have a month of heavy water changes! But if it doesn't work and you are forced to stay in a "fish-in cycling situation" then the techniques and the help from members here will get you through, it will just be more work and more frustrating interpreting the results. Anyway, good luck, glad you made it here and hope things work out!
~~waterdrop~~