Nearly 100 fish die at Calgary Zoo after mechanical problems

CALGARY- The Calgary Zoo says about 85 tilapia fish have died, after an ozone sensor failed in the hippo pool.

The pool is located in the Savannah building in Destination Africa, and the pool control system was recently replaced following damage caused by the June 2013 flood.

Get daily National news

Get the day's top news, political, economic, and current affairs headlines, delivered to your inbox once a day.

Sign up for daily National newsletter Sign Up

By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy.

Officials are now trying to determine why the system failure occurred.

There are still over 100 tilapia living alongside two hippos.