Penn Plax Aquarium Plant Decoration Kit GreenPenn Plax Aquarium Plant Decoration Kit Green Plant Set creates a diverse and interesting living space for your aquarium fish. The green plant set is so remarkably life like that once its in the water, you cant tell it from the real thing. Plastic Aquarium Plants 100% Safe for Fish 6 Plants Total, 2 Medium Plants and 4 Extra Small Plants Won't rot or cause algae