Julia Furniss's picture

Unknown invertebrate!

Observed: 19th March 2012 By: Julia Furniss
Unknown invertebrate!

I'm hoping someone can identify this for me (despite the dreadful picture!).
I have had a tank of filtered pond water indoors for just over a week (prior to starting an experiment soon) and it is now full of these little chaps/chappesses. They are <2mm long and flit about very fast, like water fleas. In fact, I think it's a Daphnia but I can't be sure.
I have been unable to identify it and hope someone can help!
Many thanks,

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