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BiologyInhabits shallow, quiet margins of lakes, ponds and sluggish streams, usually over sand or mud and often near vegetation. Enters brackish water. Forms schools a few inches below surface of water (Ref. 5723, 86798). Euryhaline and salinity-tolerant (Ref. 5951). Not a seasonal killifish. Is easy to maintain in the aquarium (Ref. 27139).