Hornwort is a great plant to help clean up any excess nutrients from your aquarium water (This helps with Algae and keeping your fish healthy). Since it is a floating plant, it gets all its nutrients from the water-column, and is great paired with fish or even in ponds.
The only requirement is a fairly strong light, but as long as you have a dedicated light or sunlight that should be enough.
Feel free to ask us any questions you may have!
Would this go alright in an African cichlid tank?