At Red Eye Aquatics, Ambulis is great because it does all the work for you. Simply plant one bunch with roots of the plant in the back corner of your tank. Then it will continue to spread throughout your substrate. After a few months, your tank will become a lush jungle with fish weaving in and out of all the long leaves, easily trimmed if needed. We love how it grows so quickly and uptakes a lot of nitrates. Plus, it's easy to remove if it's spreading somewhere you don't want it to. Just pull it out of the gravel and replant where you want it. It doesn't even need roots just cut a piece off and plant.