Rusanda (Serbian Cyrillic: Русанда) is a spa town established in 1867 and located in Melenci, Zrenjanin, Serbia.

[4] As of 2021, Slano kopovo, Rusanda and Okanj bara are the only Serbian localities where the presence of Suaeda pannonica, characteristic of solonchak soils, has been confirmed.

[5] Due to the high salinity of both the water and the mud, up to 60%, it has been speculated that Rusanda is one of the remnants of the ancient Pannonian Sea, but the lake is probably a fossil bed of the Tisza river.

It was reported of the ecological catastrophe which endangered the local population, agriculture (vineyards, orchards) and 200 bird species living in the lake area, due to the toxic saline dusts blown by the winds.

[6][7] The hydrologists however said that drying of the lake is not unusual, it happens occasionally (like in the mid-2000s) without disrupting the ecosystem, but it didn't gain as much media attention previously.