In PyCharm, you can add any number of interpreters that you desire.
To do just so, go to Settings->Project->Project Interpreter
You will be greeted with the current interpreter here as soon as you open the screen.
Look for a list which has all the names of the interpreters installed. If you find it, select it and you're good to go.
If you do not find it, then click on the little gear wheel icon on the right and select Add local.
Once you are done with this, select the directory that contains your Conda environment and use it.
Hope this helped!