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Parosphromenus sp. 'Sentang'

March 3rd, 2013 — 6:59pm

This fish has been widely available in the aquarium trade in recent years and is sometime referred to by the invented name P. ‘sintangensis’.

It displays a close resemblance to P. bintan and another unidentified fish known to aquarists as P. sp. ‘blue line’ although the inner bluish bands in the dorsal, anal and caudal fins are perhaps a little narrower in P. sp. ‘Sentang’ than the other two.

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Parosphromenus tweediei KOTTELAT & NG, 2005

March 3rd, 2013 — 5:59pm

This species has been known in the aquarium hobby since the mid-twentieth century but has almost always been identified as the congener P. deissneri and appears as such in the majority of aquarium literature.

It can be told apart from congeners by the colour pattern in adult males (see ‘Sexual Dimorphism’) plus possession of 11-12 spinous dorsal-fin rays, 13-14 spinous anal-fin rays and 6-8 segmented anal-fin rays.

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Parosphromenus quindecim KOTTELAT & NG, 2005

March 3rd, 2013 — 2:54pm

This species has occasionally been traded on a commercial basis and was known as P. sp. ‘Manis Mata’ prior to description, with the latter apparently referring to a location some 100 km away from the type locality where the fish do not occur.

It’s said to be slightly easier to maintain than the majority of congeners and is therefore a recommended choice for those ne…

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Parosphromenus ornaticauda KOTTELAT, 1991

March 3rd, 2013 — 11:12am

This species has occasionally appears in the aquarium trade in substantial quantities but is not an easy species to maintain in captivity and often susceptible to disease post-import.

It’s sometimes sold as ‘ornate licorice gourami’.

It’s among the smallest members of the gen…

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Parosphromenus opallios KOTTELAT & NG, 2005

February 28th, 2013 — 9:32pm

Endemic to Central Kalimantan (Kalimantan Tengah) province, Borneo, Indonesia although the full extent of its range remains somewhat unclear.

Initial collections were from the southwestern tip of the province, in the Jelai Bila river basin near Sukamara and Lamand basin close to Pangkalan Bun, both of which are tributaries within the Arut drainage, while it’s subsequently been recorded in the Benipah river system further east.

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Parosphromenus nagyi SCHALLER, 1985

February 27th, 2013 — 9:21pm

In males the dorsal, anal and caudal have a black subdistal band bordered on either side by bluish iridescent bands, with the inner one significantly thicker.

The pelvic fins are iridescent emerald green with a dark blotch at the base and a subdistal dark spot, while the pectoral fins are hyaline.

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Parosphromenus linkei KOTTELAT, 1991

February 26th, 2013 — 7:42pm

This species is said to be slightly easier to maintain than the majority of congeners and is therefore a recommended choice for those new to maintaining Parosphromenus spp. in the aquarium.

It’s occasionally available on a commercial basis and we’ve seen it traded as ‘moonspot licorice gourami’ in the past.

There exist at least three colour forms on…

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Parosphromenus harveyi BROWN, 1987

February 25th, 2013 — 10:47pm

Parosphromenus spp. have been grouped arbitrarily based on courtship behaviour in males which adopt a ‘head-down’, ‘head-up’, or ‘horizontal’ position depending on species.

P. harveyi belongs to the former, most abundant, assemblage in which the male assumes a near-vertical position with the head lowermost and fins splayed during nuptial displays.

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Parosphromenus bintan KOTTELAT & NG, 1998

February 25th, 2013 — 9:00pm

This species is not generally available in the aquarium hobby on a commercial basis but is occasionally collected and distributed by private aquarists.

It’s name is sometimes misapplied to commercial shipments of other species, and there also exist a number of other fish with rounded caudal-fins that may or may not be conspecific, including P. sp. ‘blue line’ and P. sp. ‘Selatan’ from Sumatra.

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Geophagus megasema HECKEL, 1840

February 15th, 2013 — 2:25pm

This species is very rare in the aquarium hobby and may never have been available on a commercial basis although it has been collected, bred and distributed by some private collectors.

It’s a member of the putative G. surinamensis ‘group’ of closely-related species within the genus and ca…

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