Aquarium Update

So I was absent for the first two days of the week and came into class Wednesday to find out that Exstacy had died. For the past week, his left eye had been inflamed, almost three times the normal size, and had white parasite-looking things attached to his body. We had tried fish medicine, however, I guess that didn't work because my partners found his upside down in Squidward's house.Following Exstacy's death, Meep became slightly more active, swimming further into the middle of the tank. Also, the water now is a hazy brown. Our test results were .25 ppm for ammonia, 160 ppm for nitrate,70 degrees Fahrenheit, and 21 degrees Celsius. The nitrate level  was this high as a result of Exstacy's death. This is normal and should decrease is a few days. Meanwhile, Fish and Cow have not changed in behavior at all. Cow still eats like no other and Fish darts around a lot.