A professional who attends fish and other aquatic life in aquarium exhibits. Respnsibilities include:

• Prepares food and feeds fish according to schedule.
• Cleans tanks and removes algae from tank windows.
• Attends to aquatic plants and decorations in displays.
• Collects and compares water samples to color-coded chart for acid analysis and monitors thermometers to ascertain water temperature.
• Adjusts thermostat and adds chemicals to water to maintain specified water conditions.
• Observes fish to detect disease and injuries, reports condition to supervisor, and treats fish according to instructions.
• May fire sedation gun and assist crew expedition members in collection of aquatic life.