I am pretty new to this. my tank in cycled ammonia, Nitrite, 0. and Nitrate 1-5. I had tiny black worms in my tank, they looked as if they were just sitting on the sand maybe dead. They were a bit thick and only about a 1/4 long. I am not sure what they were I just vacuumed them all out so I dont have a picture. Any idea what they are?







