My friend pointed out today that there are little white worm looking things sticking to the side of my tank! there are hundreds! i just want to be sure they arent parasites or something i should be worried about! I just did a water change 2 days ago. Before that i had been treating the water with melafix because my betta had cloudy eye. the cloudy eye is gone thankfully. The water is 78*F ammonia is 0 nitrates are 20 nitrites are 0, pH is 7.0. everything seems to be normal with my fish so im not sure what these could be. and when i buy plants i make sure they are the snail free ones. any idea what these could be. they are super tiny which is why i never noticed them but there are tons! and they do move on their own!