Potamogeton Octandrus -Red:
This is a common plant in lakes and ponds. It is known to be found in Africa, parts of Asia like in Russian Far East, Mongolia, Korea, Japan, China, Taiwan, Pakistan, India, Nepal, Bhutan, Myanmar, Thailand, Vietnam , Indonesia, and Papua New Guinea, and Australia and has very thin narrow leaves.
It is undemanding and once established to your aquarium, it will branch out very quickly. Frequent trimming is necessary to maintain its shape. It should be planted in the background since it grows quickly.