So I am working on my species which I requested help with a few days ago. They are large salamander like creatures that need large bodies of water to survive and the planet they live on has about 80-90% of its surface covered in deep water. Now from what I have read, a large satellite isn't necessary for this planet and wouldn't be a very likely occurrence. So would a long term ring formation around the planet be stable? I assume a ring around the planet would be just as unlikely, if not more so, but how stable would it be if it could be sustained?
Edit: To explain that this isn't a duplicate of the long term satellite question, I am asking about the possibility of a ring system instead of an orbiting celestial body. The other question doesn't seem to have the answers I am looking for.