I noticed some worms in my fish tank but dont know what kind they are. My betta ate one but then he spit it out so not sure if hes just weird or something else is going on. They are extremely small and I cant get any pictures of them. The picture below isnt the worm in my tank but I think most people have seen them in their tanks b4, the worms im talking about are smaller than these ones and swim around like eels or sea snakes. They also dont ever seem to stop moving.