Echinodorus are native to places like South America and Cuba, and they come in a variety of colors, sizes, and shapes. Most Swords are tall, unless they have names like dwarf or compact. Sword aquarium plants thrive in medium to high lighting environments best! But a common mistake is that you need high tech lights to grow red swords. Most of the plants you see here with red leaves or pink leaves or red spots actually thrive in lower light tanks as well as high light.