Cory Database

Corydoras knaacki

Basic information

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Country

Author(s)

Tencatt & Evers, 2016

Author(s)

Tencatt & Evers, 2016

Subspecies

-

ID Group

C-number(s)

      No C-number given

CW-number(s)

  • Corydoras sp. CW032 (CW32)

Synonyms

      No known synonyms

Local Names

  • Knaacks Pansermalle (Dansk)
  • Knaack's Cory (English)
  • Morse code Corydoras (English)
  • Knaacks pansarmal (Svenska)
  • sp. “Morse” (Trade name)

Etymology

-

Type Locality

Swamps in the vicinity of the town of Santa Rita, draining into the río Inambari, río Madre de Dios basin, Madre de Dios, Peru, 12°54’46.4"S, 70°10’37.4"W.

Drainage system

Collection Sites

  • Swamps in the vicinity of the town of Santa Rita, draining into the río Inambari, río Madre de Dios basin, Madre de Dios, Peru

Detailed Map

Approximate map position.

Basic ID

Silvery grey with large spots.

Sexing

Looking at the fish from above, the female is widest at the center of the body, while the male is widest just behind the pectoral fins.
When they are well fed or in breeding condition the female is always plumper, also seen from the side.

Males are normally smaller and have longer pectoral fins than females. Their pelvic (ventral) fins are more pointed.
Females are normally larger, have rounded pectoral fin. Their pelvic (ventral) fins are rounded to form a pouch for the eggs when spawning.

Standard length

Male

3 cm / 1.2 in

Female

4 cm / 1.6 in

Husbandry / Keeping

Compatibility

Peaceful

Group Size

  • Small (4-6)
  • Medium (7-10)

Diet

Omnivore

Ease of Keeping

Easy

Approx. max. Age

4 years

Spawning

See explanations

See Spawning logs:
      No items found

Has been Spawned

Yes

Bred by Me

Hatching eggs

Difficulty

Relatively Easy

Egg Size

1.8 mm / 0.07 in

Comments

Recommended Tank Parameters

Min. tank size

45 liters / 12 gal

Min.  tank length

50 cm / 20 in

Tank Setup

  • Leafy Plants
  • Mosses
  • Sponge Filter
  • Power head: Low flow
  • Caves / Hiding places
  • Roots

Recommended water parameters

Temperature Range

22 - 26°C / 71.6 - 79°F

pH Range

5 - 7.5

TDS Range

20 - 500 ppm

kH Range

20 - 300 ppm

dH Range

40 - 500 ppm

Water Parameters

      No items found

Other recources

Videos

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Author

Kristian Adolfsson

Cory nerd that has had eggs, and surviving fry of most, from over 70 Cory species, so far. Have also bred Cichlids, Killies, Rainbowfish, other Catfish and more. Read more on our About Page.