I have tiny white tubes near my sandbed. Anyone know what they are? They are about one inch in length and 1/2 mm in diameter. They are on the rock right near the sand. THe tubes look like they are made of sand.
Phyl said:Definitely not spaghetti worms. They don't have a tube to them and are usually reddish/brown in color. Harmless tube worms though and are beneficial filter feeders to your tank. Do you see little fan like circles coming out of the end of the tubes at all?