Tiny worm-like larva from pond

Tiny worm-like larva from pond

Observation - Tiny worm-like larva from pond - UK and Ireland. Description: Tiny, worm-like larva from a pond. Swam by wiggling the body from side to side. ID may not be possible from such a poor photo, but any ideas?

Tiny, worm-like larva from a pond. Swam by wiggling the body from side to side. ID may not be possible from such a poor photo, but any ideas?