Max Size: 10cm

Golden Wonder Panchax (Aplocheilus lineatus)

The Golden Wonder Panchax is quite pretty and robust and is also relatively peaceful, very hardy and suitable for most community aquariums. These Killis are also quite simple to breed, making them ideal for both beginner and experienced aquarists.

The Golden Wonder Panchax will usually leave other species alone so you can keep them alongside many other medium to large-sized moderately peaceful varieties of freshwater or brackish water species. Tankmates could include larger Barbs and Rainbowfish, peaceable Cichlids, Corydoras and Plecos.

However, the Golden Panchax has a huge mouth, can be quite predatory and will relentlessly hunt and eat small fish. Therefore, it would be best if you did not house them with smaller species like Neon Tetras, Micro Rasboras, Pseudamugil Rainbowfish and Danios.

Golden Wonder Panchax will quarrel amongst themselves, so it would be best if you kept these fish either singularly or in a group of at least six individuals, preferably more, making sure you have many more females than males.

Golden Wonder Panchax will thrive in an aquarium with slightly soft water, a neutral ph, and plenty of hiding places. Driftwood, aquatic plants and floating plants will help achieve this. These fish will also need plenty of room to swim around.

These fish will look much better in an aquarium with a dark substrate and plenty of light. A more spacious aquarium is recommended if you keep a larger group of males and females. You will need to provide good filtration and perform regular water changes to keep your fish at their best. The Golden Wonder Killifish is a very accomplished jumper, so your aquarium must have a tight-fitting lid.

The Golden Wonder Killifish has an elongated slender body with a slightly arched back, and their dorsal fin is positioned towards the back half of their body. In addition, these fish have flattened heads, a pointy snout and an upturned mouth with no barbels. These fish also have a coppery bronze body with metallic yellow-gold scales along their sides that continue through their fins. The back half of their bodies have darkish vertical bars that end at the base of the caudal fin.


Golden Wonder Panchax
Golden Wonder Panchax
Golden Wonder Panchax
Quick Facts
Scientific NameAplocheilus lineatus
Year Described1846
Other NamesStriped Panchax, Malaba Killi, Stribet Panchax
OriginsIndia, Sri Lanka
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 6+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater/Brackish
PH6.0 - 7.5
GH5 - 20
72 - 79℉
22.2 - 26.1℃


In the home aquarium, the Golden Wonder Panchax 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 quite simple to differentiate between the male and female Golden Wonder Panchax. The males are larger, bright yellow and have fainter transverse stripes and more pointed anal fins. In contrast, females are much paler than males, are slightly smaller, and their anal fin is more rounded. The female's stripes are also more pronounced and a little wider than the males.

Other Killifish of interest

American Flagfish(Jordanella floridae)
Blackfin Pearl Killifish(Austrolebias nigripinnis)
Blue Striped Rivulus Killifish(Rivulus Xiphidius, Laimosemion xiphidius)
Bluefin Notho(Nothobranchius rachovii)
Christys Killifish(Aphyosemion christyi)
Clown Killifish(Epiplatys annulatus)
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Date Added: 12/07/2022 10:03:44 - Updated: 10/08/2022 11:20:11