Yellow Panchax Killifish (Aplocheilus lineatus)

Brilliant golden colours, unique personalities and a stunning addition to your tropical aquarium!

Yellow Panchax Killifish (Aplocheilus lineatus), also known as the Golden Wonder Killifish, are a striking freshwater species admired for their brilliant golden-yellow colouring, sleek body shape and fascinating surface-dwelling behaviour.

These beautiful fish are an excellent choice for hobbyists looking for something a little different. Their vibrant colours and active personalities make them a standout addition to a suitable tropical aquarium.

Yellow Panchax primarily inhabit the upper levels of the aquarium, where they spend much of their time swimming just below the water's surface. They are natural predators with an upward-facing mouth, perfectly adapted for catching insects and other small prey.

Although generally peaceful towards similarly sized fish, Yellow Panchax are predatory and may eat smaller fish, shrimp and fry. They are best kept with peaceful, appropriately sized tankmates that are too large to be considered food.

A secure aquarium lid is essential, as these fish are excellent jumpers and can easily escape through small gaps.

Yellow Panchax appreciate a well-planted aquarium with floating plants, gentle water movement and plenty of open swimming space.

Feeding & Diet

Yellow Panchax are carnivorous fish that thrive on a varied, protein-rich diet. They are enthusiastic feeders and will readily accept a range of quality aquarium foods.

Recommended foods include:

• High-quality carnivore pellets

• Frozen bloodworms

• Frozen brine shrimp

• Daphnia

• Live or frozen insect larvae

• Other suitable protein-rich aquarium foods

Some individuals may also accept quality floating flakes and pellets. A varied diet will help maintain their vibrant golden colouring, healthy growth and overall condition.

Why We Love These Fish

• Brilliant Golden Colouring: Beautiful yellow and gold tones that stand out in any aquarium.

• Unique Surface-Dwelling Behaviour: Fascinating fish that spend most of their time exploring the upper water levels.

• Active Personalities: Curious, alert fish that quickly learn to recognise feeding time.

• Hardy & Adaptable: Relatively easy to care for when provided with suitable aquarium conditions.

• Natural Hunting Behaviour: Interesting feeding habits that make them entertaining to observe.

• Fantastic Feature Fish: A stunning addition to larger tropical community aquariums with appropriately sized tankmates.

Recommended Aquarium Parameters

• Scientific Name: Aplocheilus lineatus

• Common Name: Yellow Panchax / Golden Wonder Killifish

• Temperature: 22–28°C

• pH: 6.5–7.5

• Water Hardness: Soft to moderately hard

• Minimum Tank Size: 80 litres for a single fish or compatible pair

• Care Level: Easy to moderate

• Temperament: Generally peaceful with