er að pæla hvort einhver gæti sagt mér til um óskara ????
stærð?
matur?
stærð á búri?
eittthvað hægt að kenna þeim ??
verð?
tegundir ?
og eitthvað fleyra langar rosalega svoleyðis
Allt um óskara
Moderators: Elma, Vargur, Andri Pogo, keli
Re: Allt um óskara
má bæta þvi við að óskarinn þekkir eiganda sinn og gerir mannamun , gamla mínum var til dæmis meinilla við rauðhært fólk og gekk af göflunum þegar rauðhærðir komu í heimsókn og voru að sniglast í kringum búrið ?? ekki spyrja mig afhverju ?gunnarfiskur wrote:er að pæla hvort einhver gæti sagt mér til um óskara ????
stærð? 35cm í búrum til sögur af stærri
matur? jà alltaf til i mat , alaetur protein er màlid
stærð á búri? 200 ltr fyrir einn og öflugur hreinsibúnadur
eittthvað hægt að kenna þeim ?? gera margt fyrir mat td. stökkva i gegnum hringi og velta ser i hring , hafa líka gaman af leikföngum einsog td. borðtenniskúlum ...youtube eda google
verð? algengur óskar ca 2000 - 6000
tegundir ? algengastur er astronotus ocellatus , einnig til grassipinnis ofl, og jafnvel hàtt ì 4teg.
og eitthvað fleyra langar rosalega svoleyðis,,google
Last edited by Hrappur on 08 Aug 2008, 10:32, edited 2 times in total.
Prufaðu að googla þetta.. Oscar cichlid
Ég á 4 óskara og veit eitthvað smá um þá...
Veit að þeim finnst gott að borða, og þá helst rækjur og fiskbita, gef mínu mest þurrfóður en gef þeim rækjur kannski einu sinni í viku.
já það tekst sumum að kenna þeim eitthvað, veit um eina sem gat kennt þeim að stökkva upp úr búrinu ofan í fötu með vatni.
ég persónulega myndi ekki hafa óskara í minna en 400L búri.
Það er skemmtilegast að hafa þá fleiri en einn saman og þá má búrið ekki vera mikið minna.
the bigger the better
Stærðin er.. STÓR, myndi segja á stærð við kökudisk, svona í stærra lagi.. einhvers staðar las ég að þeir gætu orðið 45cm
Ég á 4 óskara og veit eitthvað smá um þá...
Veit að þeim finnst gott að borða, og þá helst rækjur og fiskbita, gef mínu mest þurrfóður en gef þeim rækjur kannski einu sinni í viku.
já það tekst sumum að kenna þeim eitthvað, veit um eina sem gat kennt þeim að stökkva upp úr búrinu ofan í fötu með vatni.
ég persónulega myndi ekki hafa óskara í minna en 400L búri.
Það er skemmtilegast að hafa þá fleiri en einn saman og þá má búrið ekki vera mikið minna.
the bigger the better
Stærðin er.. STÓR, myndi segja á stærð við kökudisk, svona í stærra lagi.. einhvers staðar las ég að þeir gætu orðið 45cm
-
gunnarfiskur
- Posts: 298
- Joined: 18 Jun 2008, 15:30
Appearance, size and colouration
A. ocellatus have been reported to grow to a length of 45 cm (approximately 18 in) and a mass of 1.6 kg (3.5 lb).[1] The wild caught forms of the species are typically darkly coloured with orange ringed-spots or ocelli on the caudal peduncle and on the dorsal fin.[5] It has been suggested that these ocelli function to limit fin-nipping by piranha (Serrasalmus spp.) which co-occur with A. ocellatus in its natural environment.[7][8] The species is also able to rapidly alter its colouration, a trait which facilitates ritualised territorial and combat behaviours amongst conspecifics.[9] Juvenile A. ocellatus have a different colouration to adults and are striped with white and orange wavy bands and have spotted heads.[8]
[edit] Distribution and habitat
A. ocellatus is native to Peru, Colombia, Brazil and French Guiana and occurs in the Amazon river basin, along the Amazonas, Içá, Negro, Solimões and Ucayali river systems, and also in the Approuague and Oyapock drainages.[1][2] In its natural environment the species typically occurs in slow moving white-water habitats, and has been observed sheltering under submerged branches.[5] Feral populations also occur in China,[10] northern Australia,[11] and Florida, USA[12] as a by-product of the ornamental fish trade. The species is limited in its distribution by its intolerance of cooler water temperatures, the lower lethal limit for the species is 12.9 °C (55.2 °F).[13]
[edit] Sexual dimorphism and reproduction
Although the species is widely regarded as sexually monomorphic,[5] it has also been suggested that males grow more quickly, and in some naturally occurring strains, males are noted to possess dark blotches on the base of the dorsal fin.[8][6] The species reaches sexual maturity at approximately 1 year of age and continues to reproduce for 9-10 years. Frequency and timing of spawning may be related to the occurrence of rain.[14] A. ocellatus are biparental substrate spawners though detailed information regarding their reproduction in the wild are scarce. It has been observed that the closely related Astronotus crassipinnis may, in times of danger, protect its fry in its mouth in a manner reminiscent of mouthbrooding geophagine cichlids. This behaviour, however, has not yet been observed in A. ocellatus.[6] In captivity pairs are known to select and clean generally flattened horizontal or vertical surfaces on which to lay their 1000 to 3000 eggs. Like most cichlids, A. ocellatus practice brood care, although the duration of brood care in the wild remains unknown.[6]
[edit] Feeding and prey
Examination of the stomach contents of A. ocellatus by Winemiller (1990) demonstrated that the natural diet of this fish consists primarily of aquatic and terrestrial insects (which comprise up to 60% of the diet), although small fish, and to a lesser extent crustaceans, are also consumed. Most fish eaten by A. ocellatus in the wild were relatively sedentary catfish, and included Bunocephalus, Rineloricaria and Ochmacanthus species.[7] The species uses a suction mechanism, generated by jaw extension, to capture prey,[15] and has been reported to exhibit "laying-on-side" death mimicry in a similar fashion to Parachromis friedrichsthalii and Nimbochromis livingstonii.[16][17] The species also has an absolute requirement for vitamin C and develops health problems in its absence.[18]
[edit] History, taxonomy and synoma
The species was originally described by Louis Agassiz in 1831 as Lobotes ocellatus, as he mistakenly believed the species was marine, latter work assigned the species to the genus Astronotus.[8] The species also has a number of junior synonyms: Acara compressus, Acara hyposticta, Astronotus ocellatus zebra and Astronotus orbiculatus.[19]
[edit] Selective breeding
A leucistic long-finned oscarA number of ornamental varieties of A. ocellatus have been developed for the aquarium industry. These include forms with greater intensity and quantities of red marbling across the body, albino, leucistic and xanthistic forms. A. ocellatus with marbled patches of red pigmentation are sold as red tiger oscars, while those strains with mainly red colouration of the flanks are frequently sold under the trade name of red oscars.[20] The patterning of red pigment differs between inidividuals, in the United Kingdom one A. ocellatus reportedly had markings that resembled the Arabic word for "Allah".[21] In recent years long-finned varieties have also been developed. The species is also occasionally artificially coloured by a process known as painting.[22]
[edit] In the aquarium
A. ocellatus are popular as pets, and are regarded as intelligent by aquarists. This is in part as they learn to associate their owners with food[6] and are purported to be able to distinguish their owner from strangers.[20]
Despite their large size and predatory nature A. ocellatus are relatively placid aquarium residents best housed with other fishes too large to be considered food items.[5][6][20]
A. ocellatus are known to uproot plants, and move other objects in aquariums[23] and are best maintained in volumes of 200-600 litre (75 or more gallons).[20][23] A. ocellatus is relatively tolerant of a range of typical aquarium water chemistries,[5] though its large size and messy feeding habits necessitates that efficient filtration be installed on the aquarium.[20] A. ocellatus is undemanding to feed in captivity and will accept a range of foods that include pieces of fish, prepared cichlid foods, and even small household lizards![5][6][20] Oscars may also tend to jump out of an aquarium if the lid isn't supported sufficiently.
ef enhver veit einhvað annað um þessar elskur ma hann endillega segja það
A. ocellatus have been reported to grow to a length of 45 cm (approximately 18 in) and a mass of 1.6 kg (3.5 lb).[1] The wild caught forms of the species are typically darkly coloured with orange ringed-spots or ocelli on the caudal peduncle and on the dorsal fin.[5] It has been suggested that these ocelli function to limit fin-nipping by piranha (Serrasalmus spp.) which co-occur with A. ocellatus in its natural environment.[7][8] The species is also able to rapidly alter its colouration, a trait which facilitates ritualised territorial and combat behaviours amongst conspecifics.[9] Juvenile A. ocellatus have a different colouration to adults and are striped with white and orange wavy bands and have spotted heads.[8]
[edit] Distribution and habitat
A. ocellatus is native to Peru, Colombia, Brazil and French Guiana and occurs in the Amazon river basin, along the Amazonas, Içá, Negro, Solimões and Ucayali river systems, and also in the Approuague and Oyapock drainages.[1][2] In its natural environment the species typically occurs in slow moving white-water habitats, and has been observed sheltering under submerged branches.[5] Feral populations also occur in China,[10] northern Australia,[11] and Florida, USA[12] as a by-product of the ornamental fish trade. The species is limited in its distribution by its intolerance of cooler water temperatures, the lower lethal limit for the species is 12.9 °C (55.2 °F).[13]
[edit] Sexual dimorphism and reproduction
Although the species is widely regarded as sexually monomorphic,[5] it has also been suggested that males grow more quickly, and in some naturally occurring strains, males are noted to possess dark blotches on the base of the dorsal fin.[8][6] The species reaches sexual maturity at approximately 1 year of age and continues to reproduce for 9-10 years. Frequency and timing of spawning may be related to the occurrence of rain.[14] A. ocellatus are biparental substrate spawners though detailed information regarding their reproduction in the wild are scarce. It has been observed that the closely related Astronotus crassipinnis may, in times of danger, protect its fry in its mouth in a manner reminiscent of mouthbrooding geophagine cichlids. This behaviour, however, has not yet been observed in A. ocellatus.[6] In captivity pairs are known to select and clean generally flattened horizontal or vertical surfaces on which to lay their 1000 to 3000 eggs. Like most cichlids, A. ocellatus practice brood care, although the duration of brood care in the wild remains unknown.[6]
[edit] Feeding and prey
Examination of the stomach contents of A. ocellatus by Winemiller (1990) demonstrated that the natural diet of this fish consists primarily of aquatic and terrestrial insects (which comprise up to 60% of the diet), although small fish, and to a lesser extent crustaceans, are also consumed. Most fish eaten by A. ocellatus in the wild were relatively sedentary catfish, and included Bunocephalus, Rineloricaria and Ochmacanthus species.[7] The species uses a suction mechanism, generated by jaw extension, to capture prey,[15] and has been reported to exhibit "laying-on-side" death mimicry in a similar fashion to Parachromis friedrichsthalii and Nimbochromis livingstonii.[16][17] The species also has an absolute requirement for vitamin C and develops health problems in its absence.[18]
[edit] History, taxonomy and synoma
The species was originally described by Louis Agassiz in 1831 as Lobotes ocellatus, as he mistakenly believed the species was marine, latter work assigned the species to the genus Astronotus.[8] The species also has a number of junior synonyms: Acara compressus, Acara hyposticta, Astronotus ocellatus zebra and Astronotus orbiculatus.[19]
[edit] Selective breeding
A leucistic long-finned oscarA number of ornamental varieties of A. ocellatus have been developed for the aquarium industry. These include forms with greater intensity and quantities of red marbling across the body, albino, leucistic and xanthistic forms. A. ocellatus with marbled patches of red pigmentation are sold as red tiger oscars, while those strains with mainly red colouration of the flanks are frequently sold under the trade name of red oscars.[20] The patterning of red pigment differs between inidividuals, in the United Kingdom one A. ocellatus reportedly had markings that resembled the Arabic word for "Allah".[21] In recent years long-finned varieties have also been developed. The species is also occasionally artificially coloured by a process known as painting.[22]
[edit] In the aquarium
A. ocellatus are popular as pets, and are regarded as intelligent by aquarists. This is in part as they learn to associate their owners with food[6] and are purported to be able to distinguish their owner from strangers.[20]
Despite their large size and predatory nature A. ocellatus are relatively placid aquarium residents best housed with other fishes too large to be considered food items.[5][6][20]
A. ocellatus are known to uproot plants, and move other objects in aquariums[23] and are best maintained in volumes of 200-600 litre (75 or more gallons).[20][23] A. ocellatus is relatively tolerant of a range of typical aquarium water chemistries,[5] though its large size and messy feeding habits necessitates that efficient filtration be installed on the aquarium.[20] A. ocellatus is undemanding to feed in captivity and will accept a range of foods that include pieces of fish, prepared cichlid foods, and even small household lizards![5][6][20] Oscars may also tend to jump out of an aquarium if the lid isn't supported sufficiently.
ef enhver veit einhvað annað um þessar elskur ma hann endillega segja það
