Transportation, changes in water quality or environment, predators, and illness can all trigger stress reactions in your koi.

Ensuring the nitrogen cycle in your pond is optimized requires understanding the relationship between ammonia and pH. 

  Most Serious Threats These predators are voracious and pose a great threat to the fish in your pond. Herons Herons are migratory birds that are beautiful and intelligent but are constantly searching for a meal. With eyesight several times keener than a human’s, your colorful koi are easy for herons to spot even from […]

  Some experts will advise you to avoid handling your koi as much as possible. However, many koi keepers will either need to transport their koi or will need to inspect the fish for signs of illness or disease at some point in its life. The best times to examine koi are soon after they […]