Watch the life grow and live their lives. They will fulfill all their needs as they live, and they will reproduce and keep the life cycle running. Beware of the brown eggs. They hatch "bad seeds" that will use up resources and leave drugs behind that slow down the other life.
There is a predator that will come out when hungry and drag the life back to its den to feed.
Viruses are a good way to shore up numbers. Release a few and watch them eat the life and eggs. If there is too much life they may turn into viruses themselves and spread the disease.