Anacharis
Egeria densa
Egeria densa, commonly known as Anacharis or Brazilian Waterweed, is a very fast-growing and extremely popular stem plant. It is widely recommended for beginners due to its hardiness, vigorous nutrient absorption, and excellent water oxygenation capabilities. While usually planted in bunches in the substrate, it draws almost all of its nutrients from the water column. It thrives in cooler water, making it a staple for unheated tanks, though its delicate leaves make it highly palatable to goldfish, turtles, and other herbivorous species.