Fredo is going to be 6 months old on Saturday and he's only 46 lbs. Is this a normal size for a 6 month old? It seems like he just stoped gaining weight. He has also had loose stool on and off for like...forever. Originally it was due to giardia and coccidia, however his last stool sample came out negative, so now i'm really confused. He has not eaten anything out of the ordinary either. He's also getting neutered tomorrow, but maybe I should wait until he's grown a bit more? I heard that getting them netuered at an early age will stunt their growth.