Hi
I am very new here too. It's a great site and I have received lots of helpful advice. I swapped my 10 week old Lagotto from Eukanuba (which he just wasn't enjoying) to Naturalise (it's not specifically aimed at puppies but I have taken it with me to the vet and asked him if it was okay to feed to my pup and he said it was fine). It has no gluten, wheat, soya, diary or eggs and seems to be for dogs with a sensitive tummy. I feed this three times a day and also 50gr of the Eukanuba mixed up in it each time.
Have to say that he's full each meal and will roll on his back playfully afterwards. He's a wee Christmas Pudding at the moment, but once he's allowed out then we can exercise him and get the puppy fat off.
Hope things have settled down for you.
Regards