Rotala sp. 'Green' S.T.A.L.K.E.R.: Shadow of Chernobyl GameSpot. Young potted plant, ready for growing. Bunched plants are young stems held with small anchors or coconut fibre. They may have few or no roots, which develop soon after planting. Most are supplied in emersed form, old leaves may melt as new underwater growth appears. Note: This plant is not produced at Tropica's nursery. It is not guaranteed to be free from pesticides and thus we recommend not to put them directly in tanks with sensitive shrimps or delicate fish. For precaution, keep these plants in tanks where water is changed twice a week for 2 weeks before keeping them with sensitive animals.