Posted: Wed Feb 21, 2007 2:45 pm
Try to feed out of the tank and see if they come back. If you have aquatic plants in the tank, they could be planaria, which are harmless. How often do you clean the tank and change the water? Do you feed live food like feeder fish?
If there's no food in the tank and you're keeping the water clean but they still come back, they could be from your turtle. If you think they are, you could bring a fecal sample to the vet to be tested for parasites.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-