Cabomba caroliniana

Cabomba caroliniana originates from slow-moving lakes, ponds, and streams of South and North America, where it grows fully submerged in soft, acidic to neutral waters. In the wild it forms dense underwater meadows that shelter small fish and invertebrates, while floating leaves and white flowers emerge at the surface during blooming season. Its distinctive whorled, comb-like submerged leaves are arranged in opposite pairs on long, flexible stems that sway gracefully with water movement, creating a mesmerising aesthetic in the aquarium. This visual appeal has made it one of the best-selling aquatic plants worldwide for decades. In the aquarium hobby it is prized as a background plant in community tanks, offering excellent cover for egg-scattering fish like tetras and danios. Cabomba does best in soft, slightly acidic water with moderate-to-high lighting and appreciates CO2 supplementation for vigorous growth. It can be challenging in hard alkaline water, where the delicate leaves may deteriorate. Despite being classified as invasive in some regions, it remains a staple in the aquarium trade due to its unmistakable beauty.