MrSandman, stocked properly and at the right rates/sizes, the algae reduction/elimination is nothing short of amazing!!! Plus there are a myriad of other benefits that are achieved from adding tilapia with dramatically improved water quality, improved health, size and numbers of all your other pond fish...Reduced muck...One customer even reported a nesting male flying out of the water to attack and chase off a Blue Heron encroaching on it's nest...lol
