Copper oxide nanoparticles are widely used in biomedical, electronic and catalytic fields. The evaluation of potential
hazards and toxicity is necessary to ensure aquatic and human ecosystem do not get affected. Zebrafish (Danio rerio), are used
numerous applications in research and preclinical studies. Zebra fish have the advantage of similarity in genetic homology with
humans (70%). Due to this, it is widely used in toxicological studies.