I took this image below during our day tour at the Sumilon Bluewater Resort in Cebu province.
Fishes at Sumilon Bluewater Resort
I am not sure what kind of fishes are these but they looked like Tilapia fishes. Tilapia fishes belong to the cichlid family of fishes. Since they prefer freshwater environment, they usually inhabit shallow streams and rivers, ponds, lakes and sometimes in brackish waters. I wonder if putting up pool heat pumps could cater the temperature needs of theses Tilapia fishes because they prefer water temperatures above 21°C.