You could install additional Python packages via Anacona command “conda install”
Like discussed here for deep learning environments.
With Python it is all about package dependencies and compatibility which Anaconda is meant to handle.
You should use one channel as your priority channel as discussed in the link. To read more about package management you could look here
https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-pkgs.html
You could also use the more graphical Anaconda Navigator but I would recommend the above approach.