For the most part, your Weimaraner is a well-behaved and loving dog. But when they get excited or scared, suddenly their teeth come out. Maybe it's just a little nip this time, but training your Weimaraner to not bite is crucial at any stage of life. A bite from a set of puppy teeth may be no big deal. But a fully grown Weimaraner has an impressive set of jaws, and you do not want to be on the receiving end of a serious bite.
In general, Weimaraners are loyal, loving dogs who just want to be part of your family. They are also known for trainability, meaning you can feel confident that, with some consistent training and positive reinforcement, you can teach your pup not to bite. Keep in mind that biting is a part of your dog's natural instincts, so you shouldn't expect a change in behavior overnight. If possible, it is best to start training your dog not to bite while they are still a puppy. However, adult dogs can learn to not bite as well.
When you start working with your Weimaraner on this behavior, you will need to be consistent about how you react to biting. Make sure everyone your pup interacts with follows the rules you have set for your dog as well. If one person lets your pup nibble on their fingers, it can interfere with your overall goal. For most of these methods, you only need a toy to use to play with your dog. However, for persistent biters, you may also need a spray bottle filled with water.