I'm pretty sure they are nematodes but I haven't found a shrimp safe cure besides cleaning but I did that and they just come back.restarting is not an answer. learn to take care of them.
1) ID what you have
2) search for treatment on forum.
fenbendazole is common to treat worms in aquarium
No when I scrap them they just move away or on to the scraper. They are out night and day lol I'm pretty sure they are nematodesWhen you try to scrape them do they shrink into little balls and fall back to the substrate? Do they only come out at night?
If you answered Yes than you have Planaria. Look up how to treat them. There is a dog dewormer that I hear is effective against them. I don't remember the name.