Killifish

Killifish species profile:
Aphyosemion cognatum

see other Aphyosemion
Aphyosemion cognatum XYZ. This strain turned up at a wholesalers, and was promptly designated XYZ!
Aphyosemion cognatum XYZ. This strain turned up at a wholesalers, and was promptly designated XYZ!
Aphyosemion cognatum
Aphyosemion cognatum
Current Scientific Name:
Aphyosemion cognatum
Described: Meinken, 1951
Common name(s):
Some Recorded Strains:
XYZ

Breeding Aphyosemion cognatum

Have you had any experience breeding this species? Why not fill in a species questionaire
1 other fishkeepers have successfully bred this species and left reports, their results are sumarised below

Method:
Adult fish removed from tank (100%)
Water Conditions:
Moderately hard and alkaline (100%)
Temperature:
16-19°C (50%)
20-23°C (50%)

Read the full breeding report(s) for Aphyosemion cognatum

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2 Pairs 1?? Aphyosemion australe gold killifish

Maybrook, New York, 125**, UNITED STATES OF AMERICA

$50

2 pairs 1?? unsexed Aphyosemion Australe GOLD 
picture is one of my male breeders. Father of fish you will get.  Your male fish will look similar in a few weeks *

Check out my other listingsWill combine shipping and give discounts on multiple species purchases  
We ship Mondays 
Live Arrival Guarantee:
We are committed to ensuring that your fish arrive safely and in good health. Our live arrival guarantee offers peace of mind when purchasing fish from us. Here are the... more

Norman??s Lampeye Killifish (Poropanchax normani), Tank-Bred!

Indianapolis, Indiana, 462**, UNITED STATES OF AMERICA

$12

* For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air   If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout *
 
This small fish is very peaceful and ideal for both beginners and experts alike, plus it is an excellent addition to the planted aquarium!
The Norman??s Lampeye Killifish (Poropanchax normani) is a peaceful fish whose small size makes it absolutely perfect for the nano or planted ... more

Red Cap Medaka Ricefish aka Japanese Ricefish / Killifish (Oryzias latipes "Red Ca

Indianapolis, Indiana, 462**, UNITED STATES OF AMERICA

$66

* For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air   If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout *
The Red Cap Medaka Ricefish is an extremely rare and lovely variant of its species!
 
The Red Cap Medaka Ricefish (Oryzias latipes ??Red Cap??), also known as the Japanese Ricefish or Japanese Killifish, is an extraordinarily adaptable fish species. This schooling fish can be the ... more

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Aphyosemion cognatum breeding reports

Each record reproduced here represents one instance of breeding this species. Have you kept and bred Aphyosemion cognatum? Why not add a breeding report? If you had different results, or used different methods, please share your experiences

How to keep and breed Aphyosemion cognatum

This database consists of breeding reports provided by the world killifish community, along with some statistical analysis. Results provided by successful keepers are aggregated in the bar charts below, with more detailed reports below that. Like any block of data, the larger the more significant. Please contribute a report of your attempt to breed Aphyosemion cognatum, even if you have had a negative results. You may, of course, file more than one report, particularly if you change some condition, and had a different result.

breeders have filled in breeding reports, a summary of the results are shown in the graphs below.

Would Aphyosemion cognatum be a good addition to a community tank?

graph1
  1. Never
  2. Doubtful, only with VERY calm fish
  3. Only with species of similar size
  4. Yes, a good community fish

How would you describe the disposition of Aphyosemion cognatum?

graph2
  1. Very timid
  2. Slightly timid
  3. Neutral
  4. Somewhat aggressive on occasions
  5. Very aggressive

In which water conditions do you keep these fish?

graph3
  1. Very soft and acidic
  2. Moderately soft and acidic
  3. Neutral
  4. Moderately hard and alkaline
  5. Very hard and alkaline

At what average temperature?

graph4
  1. 10-15°C
  2. 16-19°C
  3. 20-23°C
  4. 24-27°C
  5. 28°C+

What, if any is the biggest difficulty encountered when breeding these fish?

graph5
  1. Poor egg production
  2. Poor egg survival
  3. Poor fry survival rate
  4. Deformities
  5. Skewed sex ratio

How would you describe sex ratios when breeding Aphyosemion cognatum?

graph6
  1. Almost all males
  2. Somewhat male heavy
  3. Roughly equal
  4. Somewhat female heavy
  5. Almost all females

In general, how difficult is Aphyosemion cognatum to keep and breed?

graph7
  1. Very easy
  2. Easy
  3. Average
  4. Difficult
  5. Very difficult

How successful have you been at breeding Aphyosemion cognatum?

graph8
  1. Very unsuccessful
  2. Fairly unsuccessful
  3. Average
  4. Fairly successful
  5. Very successful

Very successful / fairly successful

Breeding Report: Aphyosemion cognatum
Water conditions: Moderately hard and alkaline, 20-23oC
Spawning Method: Adult fish removed from tank
Breeding problems: Poor egg production
Sex ratio: Somewhat male heavy
Breeding difficulty: Easy
Success: Very successful
Breeder: Alex Dolghi, Moldova, Republic of
Date this record created: 26th September 2003
Breeding Report: Aphyosemion cognatum
Water conditions: Moderately hard and alkaline, 16-19oC
Spawning Method: Adult fish removed from tank
Breeding problems: Poor egg production
Sex ratio: Roughly equal
Breeding difficulty: Easy
Success: Fairly successful
Breeder: Alex Dolghi, Moldova, Republic of
Date this record created: 3rd May 2003

Unsuccessful

Breeding Report: Aphyosemion cognatum
Location code: XYZ
Water conditions: Moderately soft and acidic, 24-27oC
Spawning Method: Long term (fry appear with adults)
Breeding problems: Skewed sex ratio
Sex ratio: Almost all females
Breeding difficulty: Average
Success: Fairly unsuccessful
Other Comments: Very rarely see them , they dart out of the Java Moss, grab a worm and disappear immediately. The few fry I have taken from the parents tank are even more skittish in their own tank .
Breeder: Len, Essex (1 years experience with this species)
Date this record created: 15th October 2006
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2 oz Grindal worm starter culture LIVE fish food for betta fry killifish & more

Ardenvoir, Washington, 988**, UNITED STATES OF AMERICA

$13

Grindal worms are small cousins to earthworms, and appeal to many species of fish, and fish fry, and are very easy to raise! You will receive a 2 oz portion cup of soil less media filled with live grindal worms, as well as detailed instructions to get your colony going and reproducing quickly. Also check out our other live fish food items, as well as heirloom seeds for the gardener in you!... more

Bluefin Killifish (Lucania goodei) "Feelin Goodei" - Aquarium Fish T-shirt

San Jose, California, 951**, UNITED STATES OF AMERICA

$23

The unisex heavy cotton tee is the basic staple of any wardrobe. It is the foundation upon which casual fashion grows. All it needs is a personalized design to elevate things to profitability. The specialty spun fibers provide a smooth surface for premium printing vividity and sharpness. No side seams mean there are no itchy interruptions under the arms. The shoulders have tape for improved durability.
: 100% Cotton (fiber content may vary for different colors)
: Medium fabric (5 3 ... more

Neon Stripe Lampeye Killifish (Aplocheilichthys macrophthalmus), TANK-BRED!

Indianapolis, Indiana, 462**, UNITED STATES OF AMERICA

$18

* For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air   If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout * 
This fairly uncommon lampeye killifish is a real standout due to its iridescent blue-green horizontal striping!  
The Neon Stripe Lampeye Killifish (Aplocheilichthys macrophthalmus) is a peaceful fish whose small size makes it absolutely perfect for the nano or planted aquarium. Its ... more

1902 TULLIBEE .. GRAYLING .. STRIPED KILLIFISH Fish Print Fishing

Erie, Pennsylvania, 165**, UNITED STATES OF AMERICA

$12


THE TULLIBEE - THE GRAYLING - THE STRIPED KILLIFISH Print
This print was taken from an antique book copyright 1902
Size of print: 9 1 / 2" x 6"
Would be a great print framed!!!
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[75687] AMERICAN KILLIFISH ASSOCIATION "KILLIE NOTES" APRIL 1973 (Vol. 6, #4)

Bethel, Connecticut, 068**, UNITED STATES OF AMERICA

$5

[75687] AMERICAN KILLIFISH ASSOCIATION "KILLIE NOTES" APRIL 1973 (Vol. 6, #4); PAGES 3-26; IN GOOD CONDITION with minor cover wear, writing notes on inside pages
PAYMENT through PAYPAL to be received and collected within 24 hours OF END OF AUCTION.

International Buyers ?? Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what ... more

American Flagfish Killifish (Jordanella floridae)

Indianapolis, Indiana, 462**, UNITED STATES OF AMERICA

$18

* For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air   If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout * 
The American Flagfish, also known as the Florida Flagfish, is a hardy community fish that is one of the few species that eats black beard algae! It is also great for small ponds!
The American Flagfish Killifish (Jordanella floridae) is a colorful, peaceful fish that is native to much of ... more

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