Seriously Fish
AdminAccount
AdminAccount

River

Muar

10 profiles across 5 families name the Muar as a locality.

Species
10
Families
5
Photographed
10 of 10
Difficulty rated
10 of 10
Subadult specimen of A. choirorhynchos (?).

Acantopsis dialuzonaHorseface Loach

Cobitidae · van Hasselt, 1823

Max length
200mm SL8in SL
Tank
120 × 45cm48 × 18in
Temp
16–24°C61–75°F
pH
6.0–8.0

Juveniles of this 'species' (probably a group of species - see 'distribution') are traded in large numbers but it's still uncommon to see adult specimens in the hobby suggesting their needs are not catered for often enough. This is a shame as when maintained properly they're hardy, long-lived and interesting aquarium residents. Other trade names include 'long-nosed' and 'banana' loach. Please note although certain that more than one species is being tr...

Easy
Adult individual from Thailand in the aquarium.

Barbonymus schwanefeldiiTinfoil barb

Cyprinidae · Bleeker, 1854

Max length
355mm SL14in SL
Tank
210 × 60cm84 × 24in
Temp
20–28°C68–82°F
pH
6.0–8.0

This is one of two species traded under the vernacular name 'tinfoil barb', the other being the less well-known congener B. altus. Despite this it appears that B. altus is just as widely available as B. schwanefeldii and in many cases is seen on sale more regularly. Unfortunately both are usually offered at a small size (usually around 50 - 75 mm) with little to no information regarding the eventual size of the fish.

Moderate
Adult male from Penang state, Peninsular Malaysia; aggressive mood.

Betta imbellisCrescent Betta

Osphronemidae · Ladiges, 1975

Max length
60mm SL2.4in SL
Tank
45 × 30cm18 × 12in
Temp
20–28°C68–82°F
pH
5.0–7.5

B. imbellis is included in the Betta splendens complex of closely-related species within the genus, of which members share the following set of characters: head length short 22-31 % SL; often a brightly-coloured body; iris of the eye with iridescent green or blue patches; body elongate or slender; opercles parallel when head viewed dorsally; caudal-fin rays red or brown and contrasting with the iridescent interradial membranes; unpaired fins without an irides...

Moderate
Adult specimen from Lenggor, Johor State, Peninsular Malaysia.

Betta pugnax

Osphronemidae · Cantor, 1849

Max length
70mm SL2.8in SL
Tank
80 × 30cm31 × 12in
Temp
22–28°C72–82°F
pH
4.0–7.5

It can be told apart from other members of the B. pugnax group by the following characters: chin bar present; no complete second postorbital stripe on opercle; presence of transverse bars in caudal-fin of males; caudal-fin in males broadly lanceolate; opercle scales iridescent blue; anal-fin with reddish subdistal band and black margin; caudal-fin without dark margin; 25-28 anal-fin rays; 28-31 lateral scales; 11-12 postdorsal scales; length of pelvic fins 26.6-43.8 % SL; length of head 27.5-35.2 % SL; inter-orbital width 32.4-53.0 % HL.

Moderate
Wild male specimen from Thailand.

Brevibora dorsiocellataEyespot Rasbora

Cyprinidae · Duncker, 1904

Max length
35mm SL1.4in SL
Tank
45 × 30cm18 × 12in
Temp
20–25°C68–77°F
pH
5.0–7.5

B. dorsiocellata is sometimes traded as 'green-eyed', 'emerald-eyed' or 'hi-spot' rasbora. There appear to exist several geographical forms of the species at least two of which have been seen in the trade. The most common is the rather plain-coloured fish that is produced commercially in large numbers and has gained popularity due to the bright green/blue reflective patch in the lower part of the eye.

Easy
Wild-collected adult from southern Thailand.

Desmopuntius johorensisStriped Barb

Cyprinidae · Duncker, 1904

Max length
100mm SL3.9in SL
Tank
120 × 45cm48 × 18in
Temp
20–25°C68–77°F
pH
5.0–7.0

D. johorensis can be distinguished by the following combination of characters: 5-6 dark, lateral stripes on body in specimens larger than 40 mm; stripes immediately above and below the central stripe (stripes '+1' and '-1', respectively) located on scale rows +2 and -2, not touching dorsal and ventral midlines (except in some small specimens from Peninsular Malaysia); stripes broad, typically between 0.5-1 scale rows deep...

Easy
This species is not a true freshwater fish and should be maintained in brackish conditions.

Gymnothorax tile'Freshwater' Moray Eel

Muraenidae · Hamilton, 1822

Max length
600mm SL24in SL
Tank
120 × 60cm48 × 24in
Temp
20–28°C68–82°F
pH
7.5–9.0

Gymnothorax tile

Moderate
Adult specimen from southern Thailand.

Homaloptera parclitella

Balitoridae · Tan & Ng, 2005

Max length
80mm SL3.1in SL
Tank
120 × 30cm48 × 12in
Temp
20–25.5°C68–78°F
pH
6.0–7.5

The water at the type locality is described as 'clear and fast-flowing over a rocky substratum'. H. parclitella was observed in shallow water among the rocks, and sympatric species included Garra cambodgiensis, Neolissochilus soroides, Poropuntius smedleyi, 'Puntius' binotatus, Homaloptera nebulosa and Amblyceps mangois.

Moderate
Unlike in other members of the genus, the dark blotch on the dorsal-fin does not connect with the third body bar.

Puntigrus partipentazona

Cyprinidae · Fowler, 1934

Max length
40mm SL1.6in SL
Tank
80 × 30cm31 × 12in
Temp
20–26°C68–79°F
pH
5.0–7.0

Recorded from numerous river basins in Vietnam, Cambodia, Laos, Thailand, and Peninsular Malaysia, including the Mekong, Chao Phraya, Mae Khlong, Chanthaburi, Tapi, Golok, Terengganu, Pahang, Endau, and Muar. Type locality is 'Kratt, southeastern Siam', which corresponds to modern-day Trat Province, Thailand.

Easy
This species possesses a unique fleshy structure on the lower lip.

'Puntius' lineatusLined Barb

Cyprinidae · Duncker, 1904

Max length
55mm SL2.2in SL
Tank
80 × 30cm31 × 12in
Temp
20–26°C68–79°F
pH
4.0–7.0

One of four similar-looking, laterally-striped 'Puntius' spp. native to Southeastern Asia alongside 'P.' gemellus, 'P.' johorensis, and 'P.' trifasciatus. Of these 'P.' lineatus is most often confused with 'P.' johorensis by virtue of the fact that these two seem most common in the aquarium trade. Telling them apart is relatively simple since 'P.' lineatus has 0 - 1 pairs of barbels (vs. 2 pairs in the other three species), juv...

Easy