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RAINBOWFISH


PSEUDOMUGILINAE SUB-FAMILY
The Pseudomugilinae or Blue-eye sub-family inhabits fresh waters of Australia, New Guinea,and Celebes (Indonesia).

Australian Blue-eye
[ Pictures ]
Pseudomugil signifer
SYN : Atherinasignata, Pseudomugil signatus
PD : An elongated species with elaborate finnage. There are two dorsal fins, nearly equal in size, and the caudal fin has a straight edge. The dorsal and anal fins are long and pointed. The body is yellow-brown and the iris of the eye is light blue. Each scale is bordered in dark brown giving the fish a net-like appearance. The dorsal and anal fins are bright yellow and bordered in black with a white tip at the end. The caudal fin is yellow with a black and white lower edge.
SIZE : To 1.8" (4.5 cm)
SS : Other Pseudomugil species.
HAB : Australia; Eastern Queensland and the Cape York Peninsula
S : middle, top
TANK : A tank measuring 24" (61 cm) with a capacity from 10-20 gallons (38-76 L) is recommended. Plant the tank along the edges and leave open swimming areas. The filter should create moderate circulation. Use a dark, fine gravel.
WATER : pH 6.5-7.5 (7.0), 10-15 dH (12), 73-82°F (23-28°C)
SB : An active, schooling species that can be combined with other gentle fish. This fish should be kept in groups of five or more.
SC : Corydoras, Loricarids, tetras, hatchetfish, dwarf Rainbowfish
FOOD : Live; insect larvae , crustaceans, worms, insects; flakes
SEX : Males are more colorful and slightly larger.
B : Follow suggestions for M. splendida australis. Use water values within the mentioned perimeters. The eggs are not molested by the parents and hatch after 12-16 days.
BP : 5. An easily bred species.
R : Make frequent partial water changes.
DC : 5. The species is sensitive to unfavorable water conditions.


Celebes Rainbowfish, Celebes Sailfish [ Pictures ]
Telmatherina ladigesi
SYN : None
PD : The Celebes Rainbowfish has a slender, elongated body with lateral compression. There are two dorsal fins, the first being very small. The first rays of the second dorsal fin and anal fin develop into long,thread-like appendages. Males are yellow-brown in color with blue-green iridescence. An iridescent blue to green stripe extends laterally from the caudal fin to the gill cover. The first dorsal fin is amber colored while the other fins are yellowish. The first rays of the second dorsal and anal fins are black. The edges of the caudal fin are yellow with white ends. The rest of the fin is black. The colors of females are subdued and their fins are shorter.
SIZE : To 3" (7.5 cm)
SS : None
HAB : Indonesia ; in slow-moving water in the foothills of Sulawesi (Celebes), an island located west of Borneo and east of New Guinea
S : middle
TANK : 28" (70 cm) or 20-25 gallons (75 L). The tank should have densely planted areas, but also have open swimming areas. Provide a partial cover of floating plants to subdue the overhead lighting. The tank should be in a location to receive morning sun. Use a fine gravel substrate. The water should be well-aerated.
WATER : pH 7-8 (7.1), 10-25 dH (14), 70-81°F (21-27°C). A 1% addition of salt is recommended. This can be accomplished by adding 7.5 TSP of salt/ 10 gallons (10 g/10 L)
SB : A peaceful, schooling fish recommended for community tanks with fish that can tolerate brackish water. Keep this lively fish in groups of five or more.
SC : Glass fish, Livebearers, Halfbeaks, Bumblebee fish
FOOD : Prefers floating foods. Flakes; small pellets; live; aquatic and terrestrial insects, brine shrimp, insect larvae , Tubifex
SEX : Males have larger, more elaborate fins and better coloration.
B : Use cool water with a temperature of 70-73°F (21-23°C). After courtship, the pair will spawn among plant leaves. Spawning takes place of a number of days to a number of weeks. The first batch of eggs are laid among the plants and number 30-50. The successive batches are laid with fewer eggs. After each laying, the eggs should be removed as the pair will consume them. The eggs hatch in 10-14 days. Raise the fry on crushed flake food and small live foods. The fry hang just below the water surface. They grow very slowly, but reach maturity at 7 months.
BP : 7. Breeding the Celebes Rainbowfish is moderately difficult.
R : This fish is very sensitive to changes in water properties. When adding the Celebes Rainbowfish to a tank, always allow adequate transfer acclimation time. Wild-caught specimen are very delicate and often live for only a short time. This fish needs frequent partial water changes to prosper.
DC : 6. The Celebes Rainbowfish is sensitive to water conditions.




Species Index | Fish Home | Rainforests


Recent news

New Yangtze River dam could doom more endangered species

(06/22/2009) Eight Chinese environmentalists and scientists have composed a letter warning that a new dam under consideration for the Yangtze River could lead to the extinction of several endangered species. The letter contends that Xiaonanhia Dam, which would be 30 kilometers upstream from the city of Chongqing, will negatively impact the river’s only fish reserve. Spanning 400 kilometers in the upper Yangtze, the reserve is home to 180 fish species, including the Endangered Chinese sturgeon, and the Critically Endangered Chinese paddlefish, as well as the finless porpoise.


Fish take less than a decade to evolve

(06/22/2009) Evolution is often thought of being a slow-process, taking thousands, if not millions, of years. However a new study in The American Naturalist found that Trinidadian guppies underwent evolution in just eight years, or thirty generations. Less than a decade ago Swanne Gordon, a graduate student at UC Riverside, and her team introduced Trinidadian guppies into the Damier River in the Caribbean island of Trinidad. They placed the guppies above a waterfall to allow them to flourish in a largely predator-free environment.


Madfish?: scientist warns that farmed fish could be a source of mad cow disease

(06/17/2009) In a paper that shows just how strange our modern world has become, Robert P. Friedland, neurologist from the University of Louisville, warns that farmed fish could be at risk of Creutzfeldt Jakob disease, or mad cow disease.


New report predicts dire consequences for every U.S. region from global warming

(06/17/2009) Government officials and scientists released a 196 page report detailing the impact of global warming on the U.S. yesterday. The study, commissioned in 2007 during the Bush Administration, found that every region of the U.S. faces large-scale consequences due to climate change, including higher temperatures, increased droughts, heavier rainfall, more severe weather, water shortages, rising sea levels, ecosystem stresses, loss of biodiversity, and economic impacts.


Will jellyfish take over the world?

(06/16/2009) It could be a plot of a (bad) science-fiction film: a man-made disaster creates spawns of millions upon millions of jellyfish which rapidly take over the ocean. Humans, starving for mahi-mahi and Chilean seabass, turn to jellyfish, which becomes the new tuna (after the tuna fishery has collapsed, of course). Fish sticks become jelly-sticks, and fish-and-chips becomes jelly-and-chips. The sci-fi film could end with the ominous image of a jellyfish evolving terrestrial limbs and pulling itself onto land—readying itself for a new conquest.


Marine scientist calls for abstaining from seafood to save oceans

(06/08/2009) In April marine scientist Jennifer Jacquet made the case on her blog Guilty Planet that people should abstain from eating seafood to help save life in the ocean. With fish populations collapsing worldwide and scientists sounding warnings that ocean ecosystems—as edible resources—have only decades left, it is perhaps surprising that Jacquet’s call to abstain from consuming seafood is a lone voice in the wilderness, but thus far few have called for seafood lovers to abstain.



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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.