Notopterus chitala Family Notopteridae.

Distribution IV. chitala and three other species in Southeast Asia.

escription Shape: elongated, very compressed body. The anus is very far forward. The anal fin is very long and forms a continuous fringe with the very small caudal fin. Its great mobility makes the anal fin the main organ of propulsion. Color: varies according to species, especially among the younger fish. Photo shows a Notopterus chitala, which has a fine peacock marking. Size: differs according to species, from 8 in to 2 ft 7^ in (20—80cm) in length; N. chitala is one of the largest. Sexual differences, unknown.

Environment Quiet overgrown backwaters of large rivers with underwater roots and half-submerged undergrowth. Temperature: 73-81 *F (23-27 X). pH: slightly acid to slightly alkaline. Water hardness: unimportant. Illumination: subdued. Substrate: sand with a little humus. Furnishings: richly planted. Feeding Predatory; may catch quite large fishes. Biology Behavior At dusk the fish streak constantly around the tank in search of prey. Very large tank is needed. Reproduction little information. Social life. loosely-grouped schools. Adults particularly aggressive and live alone. Compatibility: not with small, peaceable fishes.