Immediately increase the oxygen level in the pond water significantly – e.g. using a fountain, filter outlet or garden hose (as a waterfall). Set pond aerators (if available) to the highest level.
➤ Perform a 30% partial water change with tempered, chlorine-free tap water.
➤ Remove dead fish immediately to avoid contamination and germs.
➤ Conduct a quick water test :
pH < 6.8 / > 8.2 • NH₃ < 0 mg/L • NO₂ < 0.2 mg/L
➤ Pause feeding for 48 hours to reduce oxygen consumption.
Check possible causes:
– Heavy rainfall (e.g. toxins from the edge?)
– Recently fertilised lawn (nitrite shock?)
– Power failure of the pump (O₂ deficiency?)
📌 Important: We are not veterinarians, but experts in holistic pond care. If fish continue to die, please contact a fish specialist immediately!
✅ Tip: With regular use of Natura Summarum, dangerous water values typically do not occur.
