Hi Weljer

Welcome to FishLore!
I hate to say it, but fish stores often say a tank is ready because they're going for the immediate sell. There's really no way your tank is cycled unless you used a bottle of TSS and even then, a few shrimp wouldn't create enough ammonia to feed the live bacteria.
Here's a link that will help a lot:
Four Methods of Fish Less Cycling OR you can buy a bottle of Tetra Safe Start, which allows you to add fish immediately. Keep in mind if you go to the fish store and they try to sell you something that claims to immediately cycle your tank, the only product on the market right now with the appropriate live bacteria for freshwater is Tetra Safe Start. (I don't mean to sound like an infomercial, I've just read too many posts about
LFS selling the wrong stuff just to make a profit

).
Another thing to look into (this will tell you if your tank is cycled) is a liquid master
test kit. It should test ammonia,
nitrite,
nitrate, and usually pH (the pH is honestly not that important for now).
Angels, from what I've read, are very sensitive fish. They may die in a new tank, even if it has cycled. You may want to wait a few months after it's cycled to add them. But immediately after the cycle, you could add other less sensitive tank mates. And that's where I am officially useless. I know almost nothing about rts.
Others will surely be along with some more ideas. Enjoy the site and welcome to the new hobby. It's loads of fun, once you're past the initial setup.
