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Zoology Science Fair Project

Betta Fish Aggression

Betta Fish Aggression | Science Fair Projects | STEM Projects
Ever wondered how a betta fish reacts to its own reflection? In this project, you'll observe how the displayed behavior of the betta fish is affected by both extinction and habituation.


The hypothesis is that the betta fish's aggressive behavior will diminish with time.

Method & Materials

You will observe the reaction of the betta when presented with a mirror, and record the number of trials before its response to the mirror diminishes.
You will need a betta fish and fish supplies, a mirror, and a data sheet.


The results of the experiment showed that the betta's aggressive behavior diminished with time. The most interesting observation was that the betta's response to the mirror decreased significantly after the first day of the experiment.

Why do this project?

This science project is interesting because it shows how a betta fish can learn to ignore a stimulus over time.

Also Consider

Variations of this experiment could include testing the betta's response to different stimuli, or testing the betta's response to the same stimulus over a longer period of time.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related video

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