Blow it! Newt appears!

Hi

We've had a little pond for about 10 years now.  Last year we had a 
dreadful problem with blanket weed which suddenly appeared from nowhere 
-- absolutely bloody awful stuff.  I finally tried some kind of chemical 
(having first tried the virtually-superstitious use of barley straw at 
the insistence of my wife) ... no luck with either.

I was going to have another go with he chemical this year, when I read 
that tadpoles eat blanket weed.  Hoorah!  I'd already got rid of the 
fish I'd had last year (who ate all the the blasted tadpoles!), so I 
thought that *this* year all our taddies would get on top of the weed 
before it took off.

And thhen TODAY we discovered a newt in the pond!  First one ever.  And 
I hear that they eat tadpoles voraciously.

I want tadpoles, and newts, and NO WEED, please!   Any advice here?

Cheers
John