Ponds with good filtration systems need very little maintenance.
Make weekly water changes to replenish minerals and trace elements consumed by Koi.
Measure ammonia, nitrite, nitrate, pH and KH weekly
Store koi food in sealed containers in a dark, dry but cool place.
Set up a Medicine chest and make a note of expiration dates on antibiotics and pond chemicals.
If the water looks cloudy or fish look uncomfortable, - Look for possible filter, UV, air pump failure. - Check for dead animals, leaf litter clogging the filters and bottom drains - Measure
temperature, ammonia, nitrite, nitrate, phosphate, pH and alkalinity - Make significant water changes before adding chemicals.
Clean filters and skimmers before they get clogged
Keep a count of the UV bulb usage so you can replace it before it gets too weak to kill algae.
Have replacement air diffusers, air pumps and UV bulbs and a spare pump ready.
Design a quarantine system that you can assemble under 15 minutes.
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