I have 4 Northern GTF and they all have been doing extremely well until about 4 days ago when one of the frogs looked like he was having troubles doing a poo (I am unsure if it looks like he is having troubles or that is just how they poo) and he has not eaten anything for about the 4 days. I was not to concerned as I thought maybe he was eating but later at night when I was not around, but the thing is now he is starting to look a bit on the thin side and has lost weight. Any ideas as to try and feed him by hand? Apart from the above he still looks healthy and gets along fine.