"What you see in this video are dolphins who are swimming blindly in circles, dolphins floating lifelessly on the surface, trying to keep their faces as close to the surface as possible to avoid the painful sting of chlorine," the Cove Guardians wrote. "What you see is blatant abuse."
The high levels of chlorine in the tank could lead to long-term problems for dolphins, according to Naomi Rose, a marine mammal scientist at the Animal Welfare Institute (AWI).
"In general, it's a quality of life problem," Rose told The Dodo. "The chemicals irritate the eyes, so in tanks where the levels are high enough, the dolphins keep their eyes closed. That's not good for them over the long term, as these chemicals can lead to permanent eye damage, other tissue damage and perhaps eventually long-term health problems from ingesting small amounts of water with their fish."