PlanetCatfish.com - Gastrodermus hastatus (Callichthyidae) Cat-eLog

Egg
Fry 3mm
Fry 7mm
Juvenile 12mm

Cat-eLog Data Sheet
Scientific Name	**Gastrodermus hastatus** Eigenmann & Eigenmann, 1888
Common Names	Tail Spot Pygmy Cory Diamond Tail Cory, Dværgpansermalle (Denmark), Dwarf Cory, Panzerwels/Corydoras - Catfish (Germany)
Type Locality	Villa Bella (= Parintins, 2°38'S, 56°45'W), Amazonas, Brazil.
Pronunciation	gas trow derr muss - hass TATT uss
Etymology	The specific epithet is from the latin hastatus meaning spear-shaped.
Species Information
Size	24mm or 0.9" SL. Find near, nearer or same sized spp.
Identification	One of three species of pygmy cory (C. habrosus, hastatus and pygmeaus respectively). This species has a defined tail spot at the caudul penducle. Faint lines along the lateral line of a beige/grey colour run to the gill cover. The outer eye is usually a blackened colour making the actual eye itself look larger. The only pygmy species with the black rhombus shape at the base of the tail and without a horizontal stripe or dashes along the flanks.
Sexing	The traditional ''birds eye'' view over the cory is an easy way of differentiating sexes. After feeding well and breeding condition is reached, the plumpness of the females is often more noticeable than on other larger cory species due to the overall smaller size of these fish.
General Remarks	First collected in 1865 by Professor Louis Agassiz, a famous zoologist.
Habitat Information
Distribution	South America: Amazon and Paraguay River basins. Reported from the upper Paraña. Amazon, Middle Amazon (Solimoes), Madeira, Mamoré, Guaporé (Iténez) (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Not Evaluated
pH	6.8 - 7.6
Temperature	22.0-26.0°C or 71.6-78.8°F (Show species within this range)
Other Parameters	No current is preferred.
Husbandry Information
Feeding	Small foods such as crushed flake and micro pellets are suggested for normal care. Daphnia or similar smaller live foods are required to bring these fish into condition. User data.
Furniture	Sandy substrate is best, the small size means that normal gravel can be a bit large for them to sift through. One species of Corydoras for which plant cover is strongly recommended.
Compatibility	A very lively species of cory. Best kept in shoals of at least 6 to gain the benefits of the species. Active in the mid-water a lot of the time. The fish are often too small to cause hassle to other slow swimming species.
Suggested Tankmates	Despite the typical spiked fins, make sure that no other fish can fit one in its mouth! Such a small fish as this Cory can become a meal all too quickly, best kept with smaller tetras such as neons, hatchetfish and pencilfish.
Breeding	The spawning usually follows the typical 'T' position but has on occaision been reported to occur in mid water. A small amount of eggs of about 1mm are laid singly.
Breeding Reports	There are 8 breeding reports, read them all here.
Further Information
Reference	Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2), pp 166.
Registered Keepers	There are 118 registered keepers, view all "my cats" data.
Wishlists	Love this species? Click the heart to add it to your wish list. There are 19 wishes to keep this species, see who wants what.
Spotters	Spotted this species somewhere? Click the binoculars! There are 42 records of this fish being seen, view them all.
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	LFS label creator ARN ref:1.1.1581.324
Last Update	2024 Jun 12 00:09 (species record created: 2001 Apr 30 00:00)