Green Severum (Heros severus) Barbs Rio Paraná and Rio Paraguay

Rio Paraná and Rio Paraguay

Panda Uarus are relatively peaceful and thrive in groups

Rio Uruguay

Black Diamond Stingray Keychain

and fins range from a dark red to a pale orange or yellow

Green Severum (Heros severus) Barbs Rio Paraná and Rio ParaguayHeros Severum originates from the far upper reaches of the Rio Negro in Colombia, near the town of San Felipe. This large growing fish are likely the true Heros severus, and only very recently have made their way into the hobby. As wild fish from extremely acidic waters, they will display their best colors in a similar setup with soft, low pH water. Generally peaceful towards similar sized tankmates, they can be aggressive towards each other and