What type of fish are you planning on putting in??
You will need to test the water in another few days for the following; PH, Nitrate, General Hardness, Ammonia.
You can usually take a sample of water to a good Aquatic store and they will test it (usually for a small fee/ free if a large national store)
Then if the PH and other things are within the required range then you can add fish GRADUALLY. A few at a time!
If it's your first tropical tank then maybe a shoal of Tetras/ Danios, Swordtails, Platies, Guppies at first. They will help to get the bacteria going in your new water, then after a few weeks add some other fish such as Honey Gouramis, Clown Loaches, etc...
Also, it is always good to have a Pleco catfish in to eat any Algae off glass/ gravel.
Any other questions, just send message.