The fiddler crab doesn't recognize its owner. Fiddler crabs are animals with very low intelligence and cannot recognize and interact with their owners. But if the owner keeps it for a long time and feeds the fiddler crab every day, it will form a conditioned reflex to the owner's actions and will not resist the owner, but it will not become dependent on the owner.

Notes on raising fiddler crabs:

1. The fiddler crabs that have just arrived home need to be washed with salt water for one to two minutes to remove parasites on them. Or lice-like creatures.

2. When the fiddler crab first arrives home, it needs time to adapt. Do not disturb it at this time, and do not force it on your hands. It is best to put it in a relatively dark place and feed it every day. Change food.

3. The breeding box for fiddler crabs is best placed in a place with slant sunlight. Put some cover in the box so that the fiddler crabs can rest.