I can tell you its a Eriocaulon i think its Eriocaulon sp. 'Mato Grosso'Great video! By the way, there is a plant you have in that tank that looks like a giant, green sea urchin...there is one right in the middle of the video at about the 20 second mark. What plant is that, and what kind of conditions does it require? It's one of the coolest looking aquarium plants I've seen...