OW, that looks a lot like what was identified as Euglena on my pond. I posted photos that looked like that and Greg Grimes identified it and said it was harmless.
Looks pretty gross though.
JHAP ~~~~~~~~~~ "My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives." ...Hedley Lamarr (that's Hedley not Hedy)
