Coralline requires a stable tank and is slow growing, so it usually doesn't colonize until after green algaes, diatoms etc. have appeared.
So if the conditions aren't right (like in a new tank) it won't matter if you add the bottle, because the coralline won't establish until the right conditions are present.
If you are sure you're cycled, you can slowly start adding livestock to the tank and algae will inevitably start to appear once the nutrients are present and algae comes in with the other organisms. Have you thought at all about what you want in the tank?
Many people as beginners seem to find it easiest to add fish first, then move on to corals and other organisms as the tank matures, but there's some flexibility to it. If you add clean up crew organisms like snails, you will have to feed them since your tank is barren right now.
You could also get a piece of wet live rock to help seed some algae.