Shared Photo Stream Taking Up Storage

In our family we do a shared photo stream every month. It's a great idea and I love being able to see the pictures, video, comments, etc. from all of my family members. It doesn't take up any room on iCloud which is very nice, however it does take up room on the users iPhone. I was wondering if there is a way to unsubscribe or delete the shared album without actually deleting it? I still want access to the shared albums (on the web or something), without having them be completely deleted for everyone else. If not, the albums themselves don't actually take up that much room on my iPhone, so it's okay.