The World has been in quest of alternative energy sources and algae is potential candidate for generating biofuel. Neumerous technologies have proved possibility of cultivating algae at large scale. However, algae cultivation using resources like sea water, sunlight in huge open ponds is challenging. Such open systems are prone to contaminations mostly with predators of algae (prey). We are studying prey-predator interactions and controlling dominance of evading predator in algae culture using biotechnology tools.