Can Golden Wonder Killifish and Norman's Lampeye Killifish Live Together?
Golden Wonder Killifish and Norman's Lampeye Killifish are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Behaviour & Temperament
Golden Wonder Killifish is a moderately assertive species (6/10), while Norman's Lampeye Killifish is peaceful (1/10). This notable difference means Golden Wonder Killifish may occasionally assert dominance over Norman's Lampeye Killifish.
Golden Wonder Killifish and Norman's Lampeye Killifish both frequent the Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
There is a critical concern: the Piscivore (Eats small/nano fish) behaviour of one fish directly conflicts with the Nano / Bite-sized (Predation Risk) trait of the other — piscivorous fish will prey on nano-sized tank mates..
Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.
Worth noting: Golden Wonder Killifish is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.
Both fish can tolerate a pH between 6.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 5–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Golden Wonder Killifish and Norman's Lampeye Killifish together, plan for an aquarium of at least 90 litres with a minimum length of 60 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.
Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.
Specific environmental needs for this combination include: Plants - Floating, Plants - Densely covered. Meeting these requirements will help both species thrive.
Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.
Find the right tank equipment
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Diet & Feeding
Feeding time deserves special attention with this pairing. Golden Wonder Killifish is a known shrimp eater and may prey on small invertebrates or nano fish like Norman's Lampeye Killifish.
Frequently Asked Questions
Can Golden Wonder Killifish and Norman's Lampeye Killifish live together?▾
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Golden Wonder Killifish and Norman's Lampeye Killifish need?▾
A minimum of 90 litres (tank length at least 60 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.
What water temperature is best for Golden Wonder Killifish and Norman's Lampeye Killifish together?▾
Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Golden Wonder Killifish or Norman's Lampeye Killifish aggressive?▾
Golden Wonder Killifish is moderately assertive (6/10) and Norman's Lampeye Killifish is peaceful (1/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Golden Wonder Killifish and Norman's Lampeye Killifish need?▾
Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
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