Tadpoles with Frogspawn

I noticed yesterday that there was fresh frogspawn in my little 'well'. There are also the tadpoles that didn't turn into frogs from last year, I wonder if they'll make it into frogs this year? When I was taking the pictures it looked like the tadpoles were feeding off the frogspawn.
Non working day today, I spent most of it going down to the dump with a years load of bottles,and garden waste for recycling (Ian has kindly taken some for us along the way)