At first I thought this was a part of my sad rotalla wallichii, then it started to float around my tank and snag elsewhere. Is this some sort of string moss? I started to collect it in the glass ball i have in my tank.
Yay! Thanks for the responses. Now I know I have a pest to combat. Coincidentally I vacuumed out a may fly larva yesterday too. I had no idea it was in my tank, but I saw the bugger swimming in my bucket after a water change. At first I thought it was one of my fry, but nope...legs and antennae. It seems too early in the season for may flies to be getting to my tank.