Brazilian Pennywort, also known as Hydrocotyle Leucocephala is another popular aquarium plant. Hydrocotyle leucocephala makes a great background plant which provides texture in the aquarium with its many large green leaves. The Brazilian Pennywort can withstand a range of lighting conditions and also can thrive without supplemental CO2 which makes this a good choice for any aquarium keeper. This plant does well specifically in fry tanks because the fine roots are able to give cover for baby fish.