Yup, I have recently figured that out.
It was my birthday recently, so I thought that maybe I could go get fish the day after my birthday.
I brought a bag of water for them to test, and they said I should wait for the nitrites to come down because it meant my tank was still unstable. I was pretty disappointed at first, but I believe everything happens for a reason.
I got home and did research, and it said that live rock from an established tank would be my best friend. I found a coral research place, near where I live, drove there, and talked to the guy. He is a really nice, and intelligent guy. He is working to save coral reefs in the ocean, so honestly any way I can support him and the work he does, I will.
For around 10 minutes, he walked around, finding pieces of rock that he thought would work best in my tank. He gave me around a pound of his sand from his established, and thriving tanks with god knows how much coral in there. For only 20 bucks, he gave me roughly 3 pounds of live rock, and around a pound of liquid gold , AKA, his sand.
Before I added the rock and sand, my nitrites were higher than 5 ppm. Just a little over 24 hours later, they are down to 1ppm.
He explained to me that the "bacteria" that I used to start the tank was a scam. Any bacteria that you can buy in a bottle, only works in the beginning, and then is useless down the road, so you will most likely have an ammonia spike that could easily wipe out your tank. The bottles say you can put fish in right away, and I am so glad that I didn't listen to that.
If my LFS had been like any other fish store, focusing on sales, I would have never found this guy, and my tank may have crashed. I am so lucky that everything went the way it did.