[citation needed] Tanks are good for discussion and learning opportunities for children and family, helping with ecological education and understanding of ecosystems.
[1] Typical species in installations include Ray (fish), catsharks, flatfish, starfish, sea urchins, crabs, mollusks and other shellfish.
[2] Touch pools have been critiqued for how sanitary they are: humans are often touching the protective mucus of the fish and other wildlife in the tank, leading to potential health complications.
Other critiques include the quality of life for the organisms in the tank, and the lack of mimicry of real aquatic environments.
[2][3] Other researchers have evaluated the elevated risk of health impacts for humans who interact with the animals, through potential health concerns.