A number of fish were killed Wednesday and Thursday after the fish pond at Memorial Park was cleaned this week.
The fish had to be moved to one side of the pond while the other was being cleaned.
This, in addition to the addition of city water, which has chlorine and other chemicals, added stressed and killed a number of the fish.
Dead fish were removed both Wednesday and Thursday afternoon from the pond.
The pond contains goldfish, koi and some other introduced fish such as perch, catfish and blue gill.
The fish pond is cleaned about every two years, and each time it has been cleaned, the parks department has had some fish die.
About 40 to 50 fish are still left in the pond. The parks department does not plan to replace any of the fish at this time, Drew Salsbury, park supervisor, said.
Visitors to the park also will note the pond’s water has a blue coloration, which comes from a chemical added to slow the growth of algae.