Sea turtles in aquarium exhibits require large tanks with appropriate water quality and enrichment. Welfare standards are improving but space remains a persistent challenge.
Sea turtle welfare in captivity involves honest acknowledgment of the limitations of any tank relative to oceanic habitat. Facilities that maintain turtles should do so with genuine welfare justification - rehabilitation and release rather than indefinite exhibition being the most ethically defensible model. Where permanent exhibit is necessary, space, water quality, and behavioral opportunity must be maximized.