The Fish Tank Monitor project, developed by Savannah Tanner, Kaye Neill, and Astrid Delestine, is an all-in-one monitoring system designed for aquarium and fish tank enthusiasts. This device monitors the health of aquarium ecosystems by tracking critical water parameters, including nitrites, nitrates, temperature, pH, KH, and general hardness. Key technologies implemented in this project include a pump mechanism, a color sensor, and a temperature probe. The system employs water testing strips that are scanned by a color sensor to provide accurate readings of the water's parameters. The results are then compared against a predefined color key to determine the water quality. The device also features an e-ink screen for displaying data, which is controlled via a dial and two buttons, offering a user-friendly interface for monitoring tank conditions, managing species lists, and setting schedules for feeding and cleaning. One of the most notable accomplishments of this project is the integration of multiple sensors and the development of a custom PCB to support device functionality. Additionally, the team's design and 3D printing of the device's enclosure using water- and fish-safe materials highlight the commitment to safety and practicality. However, the project faced challenges in ensuring the accuracy and reliability of sensor reading. Future improvements could focus on enhancing sensor calibration and incorporating wireless connectivity for remote monitoring and alerts.