About a month ago I noticed lots of little white almost clear worms on the glass/in the rocks/and swimming in my tank. I tore my tank apart/ cleaned and recycled everything and thought they were gone. I also quarantined my fish and still have my moss balls in a separate container to monitor for worms. Tonight I just noticed they are back in my tank on the glass and swimming. Are they detritus worms? How do I get rid of them for good? How do they get there? And will they harm my fish? You can see one pictured at the top on the glass. My tank contains a betta/ neon tetras/ and a small catfish. Will they eat the worms?