The goal of this project is to use an ROV to catch Mesophotic Reef fish and a hyperbaric chamber to successfully acclimate these fish to surface pressure. This has been a problem for scientists for the last decade. As fish have an organ called the swim bladder that contains air and, therefore, expands as pressure decreases. A submersible hyperbaric chamber will maintain capture pressure so it can be slowly bled off. We hypothesize that using a ROV to capture fish will be more efficient.