Can Bee Shrimp and Least Killifish (Heterandria) Live Together?
Bee Shrimp and Least Killifish (Heterandria) 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 Bee Shrimp and Least Killifish (Heterandria)?
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
Bee Shrimp is a peaceful species (0/10), while Least Killifish (Heterandria) is peaceful (1/10). This modest difference means Least Killifish (Heterandria) may occasionally assert dominance over Bee Shrimp.
Bee Shrimp and Least Killifish (Heterandria) both frequent the 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 20°C and 24°C. Aim for the midpoint of this range (around 22.0°C) for optimal comfort.
The pH requirements of Bee Shrimp (5.5–6.8) and Least Killifish (Heterandria) (7–8) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 5–6 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Bee Shrimp and Least Killifish (Heterandria) together, plan for an aquarium of at least 19 litres with a minimum length of 30 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: Soil / Nutrient Rich, Leaf Litter/Blackwater, Plants - Densely covered, Plants - Floating. 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
Bee Shrimp and Least Killifish (Heterandria) 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 Bee Shrimp and Least Killifish (Heterandria).
5 Gallon
10 Gallon Standard
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
Show 27 more tank sizes
Frequently Asked Questions
Can Bee Shrimp and Least Killifish (Heterandria) live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Bee Shrimp and Least Killifish (Heterandria) need?
A minimum of 19 litres (tank length at least 30 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 Bee Shrimp and Least Killifish (Heterandria) together?
Keep the aquarium between 20°C and 24°C. A target of around 22.0°C sits comfortably within both species' preferred ranges.
Are Bee Shrimp or Least Killifish (Heterandria) aggressive?
Bee Shrimp is peaceful (0/10) and Least Killifish (Heterandria) is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Bee Shrimp and Least Killifish (Heterandria) need?
Their pH requirements do not overlap. Bee Shrimp prefers 5.5–6.8, while Least Killifish (Heterandria) needs 7–8. This makes them incompatible in the same water chemistry.
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 1, 2026
- Last updated
- May 1, 2026
- Issues or corrections?
- Contact the editorial team
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