PlanetCatfish.com - Scleromystax macropterus (Callichthyidae) Cat-eLog

Male
Male
Male (dorsal view)
Close-up of male
F1 Juvenile

Cat-eLog Data Sheet
Scientific Name	**Scleromystax macropterus** (Regan, 1913)
Common Names	Hi Fin Peppered Cory Antennepansermalle, Antennepansermalle, Antennepansermalle (Denmark), Bigfin Cory, Sailfin Cory
Type Locality	Paranaguá, 25°32'S, 48°36'W, Paraná, Brazil.
Synonym(s)	Corydoras bertoni, Corydoras macropterus
Pronunciation	ss KLER oh muss tax - mah CROPP terr uss
Etymology	Scleromystax: From the Greek sclero meaning hard and the Latin mystax meaning moustache. This specific epithet refers to its long (makros=long) feather-like fins (pteron=feather, fin).
Articles	- CotM 2009 March
Species Information
Size	87mm or 3.4" SL. Find near, nearer or same sized spp.
Identification	A reasonably easy species to ID when adult due to the finnage. Generally more elongate than similarly patterned species. Females may be confused with other species.
Sexing	This species' males have (very obvious) longer pectoral and dorsal fins.
Habitat Information
Distribution	South America: Coastal rivers from São Paulo to Santa Catarina, Brazil and some upper Paraná River tributaries. Santa Catarina State Rivers (click on these areas to find other species found there) La Plata, Paraná, Upper Paraná (click on these areas to find other species found there) Sao Paulo State Rivers (click on these areas to find other species found there) Sao Paulo State Rivers, Itanhaém, Preto (SP, Itanhaém) (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Endangered , range map and more is available on the IUCN species page. Last assessed 2018.
pH	5.4 - 7.0
Temperature	16.0-20.0°C or 60.8-68°F (Show species within this range)
Other Parameters	Requires cooler water but can be kept reasonably warm if water is well aerated - this is not recommended for long periods of time. Tolerant of high pH if acclimated gradually.
Husbandry Information
Feeding	Will readily accepted all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning. User data.
Furniture	Smooth pebbles and sand with bogwood and dried beech or oak leaves to leech tannins into the water. Plants can be used but are not necessary.
Compatibility	Peaceful community tank inhabitant although it's water requirements (cool blackwater) tend to limit selection somewhat. If the aim is not reproduction then these fish will tolerate higher pH closer but still below neutral. Mature males will fight often inflicting significant damage, keep in a large area or overcrowd them to avoid this. Ratios of males to females does not seem to avert this behaviour. Overcrowded small tanks will require meticulous water management.
Breeding	Unreported.
Breeding Reports	There is but a single breeding report, read it here.
Further Information
Reference	Annals and Magazine of Natural History (Series 8) v. 11 (no. 62), pp 232.
Registered Keepers	There are 16 registered keepers, view all "my cats" data.
Wishlists	Love this species? Click the heart to add it to your wish list. There are 3 wishes to keep this species, see who wants what.
Spotters	Spotted this species somewhere? Click the binoculars! There are 10 records of this fish being seen, view them all.
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	LFS label creator ARN ref:1.1.312.164
Last Update	2025 Jan 02 01:37 (species record created: 2001 Apr 30 00:00)