I have a hatch of ducklings from the weekend of 5/14. The runt of the hatch isn't keeping up with it's hatch mates. For example: http://herouxpotager.com/ducks/2016-09 - Up 3.5x its weight from hatch. http://herouxpotager.com/ducks/2016-07 - Up more than 4x its weight from hatch. This duckling: http://herouxpotager.com/ducks/2016-11 - Still under 100g at 7 days old. They're on Purina Flock Raiser starter and a B Complex multivitamin + Nutri-drench. This evening, I'm going to sit down and try to hand feed this one, since I'm really not sure that it's eating at all... though someone is eating are since I have to keep refilling the food. I haven't given them any treats yet, and I had only been providing dry food, though this AM I made a wet mash in hopes that it may just be a dry food issue. Any ideas other than what I've already tried/plan on trying?