Current methods of enumeration and growth monitoring for larval fish are manual, which require significant resources and suffer from inaccuracy. This new tool allows for reliable enumeration and continuous growth monitoring in a non-intrusive manner. The system is comprised of an image capture front end, which utilizes a light field rendering camera and strobe light. The image is then processed using a proprietary algorithm to enhance the image and then analyzed. The technology could potentially reduce feed costs, improve survivability, and lower production costs of aquaculture.