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LA
2-inch roseline shark -- probable male.

LA
Less colorful 4-inch probable female roseline shark.  2-inch swordtail below.

Sexual differences.  Male roseline sharks (like other barbs) sport more color than the females -- very common in most species of fish.  Females likely get plumper right before the monsoon (spawning) season.  The monsoons bring in more and faster water flows as well as additional food.

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Temperature.  Before the monsoons begin, the weather is warmer and so is the water.  Roseline sharks seek out the deeper and cooler portions of their home streams.

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Breeding Behavior.  Roseline sharks prefer to spawn en masse -- much like other egg-scattering barbs.  Your chances of breeding them increase as the numbers in your herd increase.

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Attitude.  Like all schooling fish, roseline sharks prefer each others' company.  They like follow the leader games as well as displaying to each other.

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Biggest Threat.  Over-fishing continues to diminish their numbers in the wild.  They are probably India's most popular export fish.  And the local population considers them an easily netted tasty treat.

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Security.  Not particularly a shy fish, roseline sharks do act more comfortable in well planted aquaria.  And since they come from fast flowing streams, a well placed powerhead makes them feel even better.

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They get along with peaceful cichlids like geiophagus and angelfish.

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Foods.  Roseline sharks, like most other barb, are omnivores -- they will eat almost any food you offer them.  Give them a good variety of nutritious foods  -- flakes, pellets, frozen, live as well as an occasional nip of the local foliage,

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Dropsy -- prognosis not good.

Relatively Disease-Free.  When kept in well oxygenated water with low organics (frequent water changes with a gravel vacuum), roseline sharks seem to be relatively disease free.  The one above is the only one I've seen contract a disease.  Treatment?  Get rid of the patient.

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Two males.

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Probable females.

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Probable males.

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Hard to sex youngsters.

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Males.

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Next to Last Words.  I doubt this page on roseline sharks expanded your knowledge of the roseline sharks.  I originally intended to spawn these critters   No such luck, but that doesn't mean I've stopped trying.  And, they make a great looking addition to nearly any community tank.  LA

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Only fry so far -- about one inch.

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All the same guy.  Not much of a harvest.

After the Last Words.  Out of several breeders in a 29-gallon tank, we harvested ONE roseline shark fry.  Not a lot, but it proves they can be spawned in captivity.  LA
PS  It's easier to catch roseline sharks if you use an 8-inch wide net.

LA
Rats!  It's not a roseline shark.  December 13, 2011.

LA
I have still not spawned these barbs.
 

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