Cat-eLog Right Arrow Callichthyidae Right Arrow Corydoradinae Right Arrow Corydoras

Jump to next section Cat-eLog Data Sheet
Scientific NameCorydoras pygmaeus  Knaack, 1966
Common NamesPygmy Cory
Panzerwels/Corydoras - Catfish (Germany)
Type LocalityNear Calama, 8°05'S, 62°52'W, along Rio Madeira near mouth of Rio Jipiraná (= River Machado), Rondônia State, Brazil.
PronunciationKory DOOR ass - pig MAY uss
EtymologyCory = helmet, doras = skin. In this case it was incorrectly used to mean armour (cuirasse) instead of skin in allusion to the dual rows of plates that run along the flanks of this genus. This specific epithet literally means dwarf (pygmaeus=dwarf).
Jump to next section Species Information
Size 32mm or 1.3" SL. Find near, nearer or same sized spp.
IdentificationCorydoras are identified by their twin rows of armour plates along the flanks and by having fewer than 10 dorsal fin rays. They are most commonly confused with the other genera in the sub-family, namely Brochis, Scleromystax and Aspidoras.

Dark band runs from tip of snout onto the caudal fin of this small species.
SexingFemales fuller, when viewed from above and larger.
General RemarksHardy if diminutive. Acclimatization in soft water helps but generally this is an easy species to keep.
Jump to next section Habitat Information
DistributionSouth America: Brazil: Rio Madeira
Amazon, Middle Amazon (Solimoes), Madeira (click on these areas to find other species found there)
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pH6.4 - 7.4
Temperature22.0-26.0°C or 71.6-78.8°F (Show species within this range)
Other ParametersPrefers slightly soft water.
Jump to next section Husbandry Information
FeedingSinking wafers, flakes, brine shrimp and live black worms if available.
FurnitureSubstrate of fine sand or gravel. Open areas of substrate surrounded by plants, rocks and/or bogwood.
CompatibilityA peaceful fish exhibiting typical Corydoras behavior. A mid-water swimming Cory.
Suggested TankmatesNon-aggressive fish such as small South American Characins.
BreedingSpawns in pairs or groups, having more than one trio (2 females and one male) increases chances of spawning. Eggs deposited around the tank, on glass and plants. Perhaps prefers plants. Eggs are 1mm in size, female carries only one egg at a time in ventral pouch. One female can lay up to 100 eggs per spawning cycle. C. pygmaeus rarely eat their eggs.

Fry will feed on micro organisms in the tank and on an open sponge filter if present. If hatched out of spawning tank microworms, vinegar eels, rotifers and small daphnia such as Cerio daphnia will be accepted.
Jump to next section Further Information
ReferencesAquarien und Terrarien-Zeitschrift v. 19 (no. 6) - pp168 - 2 figs.
Registered Keepers(1) mummymonkey (k: 112), (2) Keithj, (3) ivokilli, (4) call_apple (k: 3), (5) Coryologist (p: 3), (6) CatBrat, (7) Coryman, (8) GreenSynoMan, (9) philtre, (10) chris 1 (k: 10), (11) FuglyDragon (k: 16), who also notes: "Cute as.", (12) loafingloach, (13) cwm, (14) AmLi (k: 10), (15) Kjlossman, (16) Shralp, (17) fulvioander (k: 35), (18) Bigpig (k: 16), (19) Lydia, (20) T4FR (k: 5), who also notes: "I started out with 6 of those little guys, but one sadly died. Sadly they are very shy, perhaps they can beter be kept in a bigger aquarium with 20 or more. 23-12-2008: I haven't seen any of them for months, so I presume they are all dead.", (21) Barracuda518 (k: 15), (22) Carp37 (k: 12), who also notes: "Started with 12 but two sadly failed to acclimate. Remainder lived between 1 and 3 years- not a great success...", (23) Walter, (24) thelivelylady, (25) smithrc, (26) tomh, (27) iramjohn (k: 10), (28) glenny, (29) lizimal (k: 2), who also notes: "$4 each, very adorable little guys! Currently living in a 5gal on my desk, with a male Betta. They're getting along fine. Dec 2008 Lost one fish, not sure how.", (30) Lightbringer (k: 3), (31) spot86t, (32) bevans (k: 9), (33) Scubaguy (k: 3), (34) Bill Tuttle, (35) Fishaliciousfish (k: 12), (36) alexmuchtar (k: 2), (37) jar (k: 7), (38) norfolkgarden, who also notes: "Had 5, now down to 1. Need to get him some company. Excellent personality, awesome fish. Likes a group.", (39) Lubbe, (40) jollysue (k: 25), (41) nvcichlids (k: 9), (42) NEONCORY (k: 8), who also notes: "Bought 4 on 8/19 and add 4 more on8/28. Found eggs on 9/6.", (43) apisto-nut, (44) andywg (k: 12), (45) OldMan (k: 7), (46) tophat665 (k: 10), (47) smegforbrains, (48) AlaskanCorydoras (k: 5), who also notes: "Bought out all the store had of this fish. . . a pair of them disappeared in my tank for over a month, only to reappear when I added in some Otos. Bought more 1/16/08 ", (49) gem400 (k: 9), (50) Kets (k: 13), (51) Blonde1 (k: 8), (52) arzerkle, (53) NorthHawk (k: 8), (54) Dr zoidberg (k: 5), (55) Humunuku, (56) reneb (k: 2), (57) Travis_Conklin (k: 7), (58) h2opleco, (59) tcmfish (k: 7), (60) Chris5787 (k: 7), (61) madattiver, (62) unotim123, (63) Deb (k: 15), who also notes: "Swims midwater with Otocinclus huaorani. They are very tiny; I doubt they're even 8 weeks old. Ultimately, did not do well in the conditions provided.", (64) jeff@zina.com, (65) ayrtoninst (k: 64), (66) Luis.Ventura, (67) SHEAG35 (k: 20), (68) jha61, (69) bamboosticks (k: 10), (70) Richard B (k: 14), who also notes: "Unexpected spawning has produced fry - unheated natural daylight tank (16x8x8) with monosolenium in.", (71) peterl, (72) vanillarum (k: 12), (73) Tserisa, (74) corycrazy (k: 10), (75) drpleco (k: 15), (76) marangmic, (77) matti2uude (k: 6), (78) jbloom81 (p: 2), (79) MichaelC95, (80) xander (k: 4), (81) rhibear (k: 6), (82) coelacanth, (83) redcrane, (84) NC24, (85) Vlacek (k: 3), (86) boyneburn, (87) knockout (k: 2), (88) rayfong, (89) Skwidd, Inc. (k: 12), who also notes: "Darling little fish! Likes being kept in a big group with a decent sized school of small tetras(neons, glowlights). End up all schooling together. They don't call 'em tetra cories for nothing!", (90) corybreed, (91) jp11biod, (92) dave.h, (93) aquaoahu, (94) Mowin (k: 10), (95) Jools (k: 2), (96) chad320 (k: 12), (97) Sam (p: 2, k: 28), (98) SHEAG (k: 12), (99) Korsaaven (k: 8), who also notes: "Have spawned only twice but they ate their own eggs.", (100) Mark Roesner, (101) arapaimag (k: 3), (102) tomr (k: 3), (103) Black_flys (k: 12), (104) JamesStuddart (p: 2, k: 13), (105) bartian (k: 15), (106) xavierD., (107) rmc (p: 2, k: 6), (108) ars (k: 50), who also notes: "Regular spawners", (109) donpetty (k: 5), who also notes: "Kept in a 55 gallon general community tank with other dwarf catfish and smaller tetras.", (110) Donaldm (k: 10), who also notes: "Wild Caught", (111) krb (k: 9), (112) Skägget (k: 11), who also notes: "Lovely creatures one of the few Corydoras I like", (113) jeff.l, (114) markmoten (k: 12), (115) mace, (116) Alisana, (117) Lars Jamne (k: 50), (118) buffalo775, (119) dkshadowwolf (p: 2, k: 10), (120) Catfish freak (k: 6), (121) madtundra, (122) Dinnie, (123) bluefish1, (124) janne dahle (k: 5), (125) Gsneufeld, (126) jlim (k: 10), (127) Vess, (128) Jeffww, (129) gossei (k: 5), (130) hullensien, (131) estherevans, (132) Cashflo, (133) leej24 (k: 10), (134) Shazray, (135) cinnamonsticks (k: 12), who also notes: "This group has spawned a few times, but I have been unable to rasie any fry.", (136) darr3ll, (137) Jass, (138) Zzyzx85, (139) murray (p: 2, k: 8), (140) ladytara33, (141) Regina (k: 8), (142) msjinkzd (k: 50), (143) captmicha (k: 6), (144) Lusitano972, (145) Thoth, (146) Aquathumb, (147) Catfishfingers, (148) Madtundra01, (149) HobbitCat, (150) Stefanus, (151) Onsaud (k: 6), who also notes: "Adorable and tiny, but a little shy. The only cory cats I've kept (so far!), but I love them. They school loosely but distinctly and it's lots of fun to watch. They just bred, which is really exciting! I can count six or seven eggs so far.", (152) lilu (k: 11), (153) wijnands (k: 7), (154) Lee Meadows, (155) Supercorygirl, (156) fishdoc313 (k: 8), (157) Ashley_1988 (k: 15), (158) Sean B, (159) chriscoli, (160) flatfish (k: 8), (161) CatWhat, (162) bbdean, (163) Ozboy (k: 30), (164) LostYeti (k: 6), (165) Rummage, (166) nicoleandthebee (k: 8), (167) SeanL (k: 25), (168) Triactis Trainer, (169) Tamcon83, (170) davidcook3, (171) jodilynn (k: 2), who also notes: "Two TINY individuals (named "Drew and Mike" by my 8 year-old daughter after the now defunct Detroit morning radio), happily camping out in a 2.5 gallon with a typically cranky Betta named "Copper". Can't imagine keeping them in a big tank! Update: Added "Trudy" 3/5/15. "Drew" immediately started hitting on her ;P !", (172) magicmarymac, (173) jvision, (174) mark24, (175) Nabobmob1 (k: 20), (176) Shaydee1990, (177) Mruaru, (178) Mathias, (179) denis (k: 7), (180) KGlo (k: 2), (181) NatureViv (k: 4), who also notes: "Kept in a small aquarium; tank companion’s Phoenix Rasbora (Boraras merah). Substrate is predominately fine silica sand with larger rounded river pebbles. Temperature: 22 to 26°C pH: 6.2 to 6.5 Hardness: Soft / Black water", (182) rcbows (k: 8), who also notes: "Setup in a 10 gallon with Java Moss.", (183) lee73, (184) ahxw, (185) CodOnMyRod, (186) dpm1, (187) 4evercories, (188) ted williams, (189) Eggheadfish (k: 12), (190) cjerrom, (191) irishman710, (192) indeliKate, (193) Mr Whippy, (194) jakkals, (195) jessetheneko, (196) rootbear, (197) MarlonnekeW (k: 10), (198) DHarris, (199) Gerald CapeTown, (200) sleepyhead, (201) adcc (k: 10), (202) Coursair, (203) AresGr (k: 10), who also notes: "Started with 6 and added 4 more. They form a lovely school when they decide to swim together. They are touching each as if they care for one another. Experimenting a lot (food choices, numbers, decorations) have improved their activity sagnificantly. Awesome 10g aquarium choice. Safe for my cherry shrimplets.", (204) Mvinyl (k: 15), (205) Waldsee, (206) emacartoon (k: 2), (207) DavidNMaddieHaveCats, (208) Carolus, (209) aqua_maniacs, (210) boshk (k: 6), (211) aramigraphix, (212) Wyomingite (k: 17), (213) synolover, (214) Murray (k: 15), (215) Tetranerd (k: 40), who also notes: "These guys love water change days", (216) shrimpkeeper222 (k: 4), (217) Dalek Tzet (k: 6), (218) kiwidu21, (219) homerno1, (220) Daperre (k: 10), (221) ellekaf, (222) Daunicorn (p: 2, k: 7), (223) Junglejason (p: 2), (224) RolandNL (k: 3), (225) Guppy09, (226) comadrreja, (227) SimenAndre, (228) Evy, (229) Cecibella (k: 8), (230) TheNativeAquarist (k: 10), (231) Coolcorycats, (232) Koen (k: 15), (233) Jake101, (234) jabones (p: 2), (235) MummaV2, (236) protopterus, (237) Don Kinyon, (238) Electrocat (p: 2), (239) Maxpedley, (240) Monkeh (k: 30), (241) AntonioAG, (242) sabrinah, (243) MattHunt (k: 6), who also notes: "Previously v. shy in heavily planted 180l, moved due to introduction of 3 spot gourami who may have eaten 2.", (244) Gulper, (245) Samaki, (246) redbeard9 (k: 15), (247) Dis, (248) troi, (249) Apache6467.

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Breeding Reports(1) Mvinyl (b: 53), (2) Onsaud (b: 49), (3) CodOnMyRod (b: 48), (4) Rita Aspevik (b: 47), (5) ars (b: 45), (6) Lars Jamne (b: 45), (7) Coriequest (b: 44), (8) MarlonnekeW (b: 35), (9) Vess (b: 13), (10) SeanL (b: 11), (11) Jeffww (b: 10), (12) Gsneufeld (b: 10), (13) comadrreja (b: 10), (14) dpm1 (b: 0).
Articles
Article - Shane's World Reproduction Breeding Corydoras pygmaeus
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Last Update2013 Jul 19 18:56 (species record created: 2001 Apr 30 00:00)