Pond Boss Forums GENERAL QUESTIONS Help Duck Weed

I hate to be a stick in the mud but duckweed is beneficial three-fold. It is a good protein source for the fish and will prevent algae bloom by blocking direct sunlight which will likely kill off all your fish especially with the addition of cattle urine and it will take up excess nitrates. Cattle urinating in the pond likely caused ammonia spikes which killed off the larger fish requiring more oxygen and are more succeptable to nitrite levels than smaller fish. I could of course be way off but duckweed's real only negative is making it hard to fish. My neighbor's pond stays covered with duckweed all the warm months and has a healthy fish population...no cattle! Cow piss moss we call it, a scummy green STINKY moss like substance will deplete oxygen levels as quickly as a full algae bloom...