so another observation since another day has gone by. ive done intensive research on the worms..i have now i think 3 worms. all might be diff kinds. one is tan colored with a brown tip as a head and its tail is coiled up. its about a 1 1/2 long. and i have one dat i still cant see anything but the tip so have no clue wat it is. but is has no hairs along the side so i dont think its a bristle like i originally thought it was. and last but not least..i have this one thing on my other rock..its inside so i havent seen its body either but...i can say there are these web lookin things sticking out of the whole. looks like..thin thin long hair or can resemble a spiders web. any insights? my tank i think just finally went into the cycle cuz my nitrate and nitrate levels are rising. thanks guys again..i appreciate the help.