Can Least Killifish (Heterandria) and Panda Dwarf Cichlid Live Together?
Least Killifish (Heterandria) and Panda Dwarf Cichlid are not recommended as tank mates due to conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Can your tank handle Least Killifish (Heterandria) and Panda Dwarf Cichlid?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
Behaviour & Temperament
Least Killifish (Heterandria) is a peaceful species (1/10), while Panda Dwarf Cichlid is moderately assertive (6/10). This notable difference means Panda Dwarf Cichlid may occasionally assert dominance over Least Killifish (Heterandria).
Least Killifish (Heterandria) and Panda Dwarf Cichlid both frequent the Middle (Open Water) and Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Water Parameters
The safe temperature window for both species falls between 23°C and 27°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.
The pH requirements of Least Killifish (Heterandria) (7–8) and Panda Dwarf Cichlid (5–6.5) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 5–5 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Least Killifish (Heterandria) and Panda Dwarf Cichlid together, plan for an aquarium of at least 60 litres with a minimum length of 60 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
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 - Densely covered, Plants - Floating, Sand (Sifters), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding). 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.
Why This Pairing Usually Fails in Practice
Least Killifish (Heterandria) and Panda Dwarf Cichlid are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Least Killifish (Heterandria) and Panda Dwarf Cichlid.
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
40 Gallon Breeder
Show 19 more tank sizes
Frequently Asked Questions
Can Least Killifish (Heterandria) and Panda Dwarf Cichlid live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Least Killifish (Heterandria) and Panda Dwarf Cichlid need?
A minimum of 60 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 Least Killifish (Heterandria) and Panda Dwarf Cichlid together?
Keep the aquarium between 23°C and 27°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Least Killifish (Heterandria) or Panda Dwarf Cichlid aggressive?
Least Killifish (Heterandria) is peaceful (1/10) and Panda Dwarf Cichlid is moderately assertive (6/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Least Killifish (Heterandria) and Panda Dwarf Cichlid need?
Their pH requirements do not overlap. Least Killifish (Heterandria) prefers 7–8, while Panda Dwarf Cichlid needs 5–6.5. This makes them incompatible in the same water chemistry.
How do I manage Panda Dwarf Cichlid's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Panda Dwarf Cichlid space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
Shared setup supplies
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Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- May 7, 2026
- Last updated
- May 7, 2026
- Issues or corrections?
- Contact the editorial team
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