63 specles of water mites recorded in three Lobelia-type lakes. Three species: Eylais relicta. Lobertia saxonica, Arrenurus vietsi were new for Poland. The fauna of investigated lakes is strongly individualized. The water mites fauna of Lake Łąkie were dominated by acidophilic species. In the Lake Głęboczko the indicators of oligo-mesotrophy and rnoderate eutrophy are the most numerous. The species of small water bodies and eurytopic were the most numerous in the Lakes Cechyńskie Małe and Głęboczko. This situatlon is results of growing eutrophy.