Golf courses that use water from their water hazards to water the turf really, really like the Tilapia. FA clogs the sprinkler heads. When they are using Cutrine Plus or other copper based algaecides to control the algae in those ponds, they have to be very mindful of when the algaecide is applied so they don't pump that water onto the turf, which causes problems for the turf. Since some of the places have sprinkler systems that are on timers, if they don't remember to turn the system off before applying the algaecide, then their turf has problems. Or they forget to turn the irrigation system back on..........