Worms in the water

[Ozydego]

Ok, I did a major water change tonight and turned off the filters so I wouldnt disturb my BB with the new water before I primed it. As I was filling the tank back up I noticed a hair twirling around... I took a closer look and it changed movements and directions and I saw that it was a very thin clear worm, looking closer then, I saw a second. I didn't have anything to take a video, then they were gone back away from the glass?? Any ideas what I have living in my tank? No fish yet, actually was going to go to the store tomorrow as my fish less cycle has just finished... Any concerns with this?

 

[Ozydego]

Did some more digging, pretty sure they are not planaria as they are not white, and way to long and skinny to be a nematode... Stumped

 

[librarygirl]

Hm.....So you're fishless cycling; have you added fish yet? Did you add fish food during the cycle? My first thought was planaria but, if they aren't white then I have no idea. Here are some links that might help. Good luck.
What are those bugs/worms in the water? @ petfish.net
Caudata Culture Articles - Aquarium Invaders: Algae, Snails, Worms and Other Critters

 

[Ozydego]

Doing more research I guess they could be planaria, but just so thin yet that they didn't show white... They are always described as hairs.... I did the fish less cycle, and I did throw in just the tiniest pinch of food at the beginning... Was thinking planaria again, cause they could feed on that food.... Basically since I cannot find anything else besides planaria, I am saying that's what they are... Hopefully my corys will take care of them... A good snack.