One similarity between the two is that they do well in a wet, underwater environment. They both start out as eggs as well. A difference is that Fish cannot go on land and survive. Fish do not have features built to make them able to go on land.
Two examples of an amphibian is a frog and a salamander. One similarity between amphibians and fish is that they are both vertebrates. One difference is that a fish can only live in water. It is an aquatic vertebrate. Amphibians are able to live on land or in water.
