{"id":32417,"date":"2026-05-21T15:03:57","date_gmt":"2026-05-21T13:03:57","guid":{"rendered":"https:\/\/aquaforest.eu\/?post_type=docs&p=32417"},"modified":"2026-05-21T15:03:57","modified_gmt":"2026-05-21T13:03:57","password":"","slug":"ammonia-and-nitrite-spikes-in-spring-how-to-protect-fish-during-the-transition-period","status":"publish","type":"docs","link":"https:\/\/aquaforest.eu\/en\/knowledge-base\/ammonia-and-nitrite-spikes-in-spring-how-to-protect-fish-during-the-transition-period\/","title":{"rendered":"Ammonia and nitrite spikes in spring \u2013 how to protect fish during the transition period."},"content":{"rendered":"\n

Introduction<\/strong><\/h2>\n\n\n\n

Spring in a garden pond begins much earlier than the calendar suggests. The moment when plants start growing depends mainly on water temperature and the amount of light. As soon as conditions improve, intensive biological processes begin in the pond: organic matter starts to decompose, nitrogen and phosphorus compounds are released, and plants gradually return to active growth. This is a period when the pond\u2019s balance can easily be disturbed. Plants must compete with algae for nutrients, which is why spring pond care is not only about cleaning. It is also about consciously restarting the processes that allow plants to take control of the ecosystem. <\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

What happens to plants after winter?<\/strong><\/h2>\n\n\n\n

After a period of low temperatures, most aquatic plants remain in a dormant state. Their root systems are weakened, some leaves have died back, and their metabolism is only beginning to speed up. <\/p>\n\n\n\n

At the same time, the water contains:<\/strong><\/p>\n\n\n\n