Are nitrates harmful to fish?
No, nitrates are not harmful to your fish. Nitrates are consumed by pond plants. If high levels of nitrates are prevalent in early Spring before the plants become actively growing, an algae bloom can occur. If nitrates are high during the year your pond may benefit by adding more plants or by reducing the organic nutrients in the pond by adding more beneficial bacteria to it such as our Microbe Lift or Pond Bio-Solutions products which are all-natural beneficial bacteria products. This will help reduce the algae and keep the pond’s ecosystem in check.
