Max Size: 2.5cm

Black Bar Endler (Poecilia wingei)

Black Bar Endlers are a stunning fish species rarely seen in pet stores and were also the first Endler ever to be collected. A lot of people have never even seen one in person.

These fish are relatively small, peaceful, and hardy, making them perfect for beginners and more advanced hobbyists. These fish are also prolific breeders with unique metallic colours. Due to their small size, you can house these Endlers in nano or planted aquariums; however, these fish are also fine in a community aquarium with other small peaceful fish species.

It would be best to maintain Black Bar Endlers in groups as they feel more comfortable, leading to an attractive, exciting and more natural-looking display. You can house these Endlers with other small, peaceful fish if they are not known to nip at fins. Adult dwarf shrimp also make ideal tankmates; however, Endlers may eat shrimplets. More significant, peaceful invertebrates can also make good tankmates, but much larger, more aggressive fish are not advised as they will probably see these fish as a snack.

Black Bar Endlers typically occupy the middle to the top levels of the water column; however, you will often see them swimming and feeding in the bottom levels also. These fish are not afraid to jump, so you should make sure your aquarium has a tight-fitting lid or a significantly lowered water level. Black Bar Endlers will not eat or bother plants.

Male Black Bar Endlers have dark markings on their flanks, with orange as the most dominant colour. However, these fish also have splashes of greenish-blue on the back area of their body. Additionally, they possess a double swordtail caudal fin that can differ in colour in different individuals being either black or orange, and their dorsal fins tend to be an orangy-red. Unfortunately, females have no striking colours, nor do the babies until they reach a few weeks of age, at which point the males will start to develop their patterns.


Black Bar Endlers
Black Bar Endler
Black Bar Endler
Black Bar Endler
Black Bar Endler
Black Bar Endler
Black Bar Endler
Black Bar Endler
Black Bar Endler
Quick Facts
Scientific NamePoecilia wingei
Other NamesNone
Aquarium LevelAll Levels
Best kept asGroups 6+
Lifespan2 - 3 years
Water Parameters
Water TypeFreshwater
PH7.0 - 8.5
GH15 - 35
KH4 - 6
TDS50 - 150
75 - 86℉
23.9 - 30℃

Natural Habitat

Laguna De Los Patos


In the home aquarium, the Black Bar Endler will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

It is straightforward to differentiate between male and female Black Bar Endlers. The males are smaller and typically much more vibrantly coloured and patterned compared to the females. In contrast, the females grow much larger than males and are very dull and plain-looking.


Endlers are the easiest livebearers to breed as they do not predate on their fry anywhere near the level of other livebearers. Though when the colony gets going with more mouths to feed, the yield of try will lessen, and the colony will balance itself out. From our experience in keeping and breeding endlers, it seems the first batch of fry is most likely to be predated on, and once the adults are used to seeing fry around, they tend to leave subsequent fry drops alone.

Female Endlers will drop fry every 26-30 days depending on temperature; higher temperatures will shorten the gestation period. Females can start dropping fry from 2-3 months of age, although the smaller and younger the fish, the less fry they will drop. Some first drops can produce as little as 2-3 fry, and mature adult females can typically produce 30-50 fry.

If you wish to maximise the survival rate of your Black Bar Endler fry, we recommend adding Guppy Grass to the aquarium. Guppy grass is a fast-growing and straightforward plant that provides a lot of coverage for the fry, which are most vulnerable for the first hour after being born before becoming free swimming. You can also use a cheap floating breeding Hatchery if you want to be sure no fry are lost but be prepared to be constantly diving into your aquarium to net out new fry every month.

In summary, the bigger question isn't how to breed endlers, but how do you *not breed* endlers :).

Other Endlers of interest

Blue Star Endlers(Poecilia wingei)
El Tigre Endler(Poecilia wingei)
Santa Maria Endler(Poecilia Wingei)
Staeck Endler(Poecilia wingei)
Yellow Tiger Endler(Poecilia wingei / Poecilia reticulata)
Date Added: 16/11/2021 12:45:05 - Updated: 26/08/2022 11:51:35