PD: A somewhat elongated fish that has a large mouth and eyes. Its body is silver in color. The dorsal fin is located far back on the body and stands tall. Its tail is forked and has a large black spot at its base. The other fins are transparent. Sometimes a black horizontal line, that runs from the eye to the tail spot, develops. SIZE: To 10" (25 cm) SS: Other Acestrorhynchus species. HAB: South America; found in the Amazon Basin and the Paraguay River watershed. S: middle, top TANK: 48" (122 cm) or 55 gallons (209 L) is minimal. The tank should be spacious with plenty of open swimming areas. Provide a cover of floating plants to dim the lighting. Use a tight-fitting cover as this fish is known to jump. The tank should be heavily planted. WATER: pH 5.8-7.5 (6.9), 4-15 dH (10), 79-86°F (26-30°C) SB: Will eat smaller fish. A schooling fish that should be either keep singly or in groups of 6 or more. If kept in groups of 2-5 fish, fighting will occur. SC: Pimelodids, large Loricarids, Pacus, Piranhas, Silver Dollars, Arawana FOOD: Live: mostly fish; earthworms, aquatic insects, Tubifex; pellets; chopped meat. SEX: Females are plumper. B: Unsuccessful in captivity BP: 10. This fish has not been bred in captivity. R: Little is known about these fish, even though they are frequently sold in aquarium stores. Acestrorhynchus nasutus ' is distinguishable from Acestrorhynchus falcatus by its more slender body and the absence of a black spot behind the gill cover. This species is often referred to as a “Freshwater Barracuda” because of its body form, not because of any relationship to the true marine Barracuda. An important food fish in South America. DC: 6. A large and aggressive fish that requires a diet including live foods. Recent articles about fish Overfishing may hurt Amazon forest trees (2/5/2008) Overfishing is reducing the effectiveness of seed dispersal by fish in the Brazilian Pantanal, reports Nature. The research suggests that fishing practices can affect forest health. Scientists find fish that literally lives in trees (10/17/2007) Scientists have found a fish that literally lives in trees, according to research published in The American Naturalist and highlighted in New Scientist Magazine. Piranhas originated when Amazon was flooded by seawater (12/4/2007) South America's piranha family of fish -- notorious as eaters of flesh -- can be traced back to a single ancestor which dispersed when the Amazon was flooded by seawater some five million years ago, report researchers from the Institut de Recherche Pour le Developpement (IRD). Today piranhas are exclusively freshwater fish found from the Orinoco River basin in Venezuela to the Parana in Argentina. |
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Copyright Rhett Butler 1994-2009 The copy for fish.mongabay.com was written in 1994-1995. Therefore some information such as scientific names may be out of date. For this, I apologize. Feel free to send corrections to me. |
