No interactions present.
Not sure if it is possible to tell the difference between Smooth and Palmate newt larvae? Might be safer if you put an id up just for Newt (Lissotriton)?
Though i agree if you know you have Smooth's in your pond then the larvae are probably the same species!
It isn't possible really. I assume the identification is based on the presence of adults, but that's a bit difficult to agree with from a photo!
Lat/Lng: 51.5, -2.6
OS grid ref: ST6281