Water hyacinth (Eichhornia crasippes) that grows in water bodies creates havoc to fish farmers as it considerably reduces water flow and depletes oxygen in fish farms. The fish farmed in cages are most affected. Water hyacinth also acts as a breeding ground for parasites and other hazardous organisms that cause diseases to fish. It comes to fish farms along with monsoon run-off water, establishes during July to August and generally decays during October as the salinity levels increase. However extended monsoon and release of water from dams this year resulted low salinity leading to a favorable environment for water hyacinth even during November and December. The fish stock ready for harvest during December is greatly affected by the presence of water hyacinth. In this context, KVK conducted an orientation programme on ill effects of water hyacinth on fish production and it’s eradication methods. A massive cleaning drive was conducted by engaging young fish farmers at Ezhikkara, Ernakulam where the water hyacinth accumulation was cleared from an area of 2 acres on 24th December 2021 as part of KVK’s Swatchtha Pakhwada.