Liquid bacteria doesn't really help your tank to cycle. It is a different variety of bacteria that floats in the water and processes ammonia and nitrites... It doesn't usually exist at levels high enough to support a tank.
What happens when you put the liquid bacteria in is a short term processing of waste. The variety of bacteria used doesn't survive well in a tank for very long - it will, however, survive well in a bottle until you use it. When you put it in the tank, it does it's thing and then dies away. The type of bacteria that you need to have living in your tank for it to be properly cycled cannot survive without a flow of "food" and oxygen. So it is impossible to bottle.
If you just put the water in and the liquid bacteria in, you are going to have perfect water. There is nothing to dirty it - the water is perfectly clean to begin with. "Perfect" water does not mean cycled. It just means that the water is clean. You could take a cup, plop a super dirty goldfish in it, test right away, and you would have perfect water.
It wouldn't last long though. In the same way, you could have a tank set up for a year without any fish and "perfect" water, but it would not be cycled at all.
Liquid bacteria can be a useful tool to help when you are cycling, but it alone does not cycle the tank. It is sort of like a stop gap product. It will help keep the ammonia and nitrites a bit lower as long as you are dosing it... But it won't actually establish a colony in your tank. Hopefully a real cycle will happen before you empty the bottle... On the other hand, it could harm the cycle in the long run as it eats the waste too every time you dose the tank - so it reduces the amount of food available to the real cycling bacteria. That doesn't grow as much, so once you stop dosing the liquid there is a spike that could kill your fish.
Personally, I would just do a normal fish in cycle and spend the money on a testing kit instead of liquid bacteria. You are going to have to be testing and changing the water anyway - sure, the liquid might make the cycle "softer", but it won't actually make it faster or easier.