Seeds of Halophila ovalis germinated after 4 to 5 days. Germination rate is highest in case of 15 thousandth of salinity (80 percent germination). After being planted, the average seed survival rate after 12 days is 63 percent, after 15 days is 6 percent, and after 20 days is 0,5 percent only. In this study, most seeds of Halophila ovalis do not survive after three-leaf stage.