Sword plants, also known as Echinodorus and Helanthium, are a popular group of aquatic plants commonly used in aquariums. They are known for their sword-shaped leaves and the variety of colors, shapes, and sizes they come in. Sword plants can be used to create different aquatic landscape designs, including a jungle-style aquarium or a Dutch-style aquarium.
Sword plants require moderate to high light and prefer nutrient-rich substrate to grow well. They are heavy root feeders, and providing a substrate with rich nutrients is important for their growth and overall health. CO2 injection can also help to improve their growth rate and leaf coloration.
There are several species of sword plants, and they vary in size and appearance. Some of the popular species include Echinodorus bleheri, Echinodorus tenellus, Echinodorus amazonicus, and Echinodorus major. Sword plants can be propagated by runners or by division, and they can grow to different sizes depending on the species.
Sword plants can provide a lot of benefits to aquariums, including oxygenation of the water, uptake of excess nutrients, and providing hiding places for fish and invertebrates. They are also known to remove toxins from the water, making the aquarium environment healthier for fish and other aquatic inhabitants.