Can Chocolate Loricaria (L062) and Lyretail Killifish Live Together?

Ideal Tank Mates

Yes, Chocolate Loricaria (L062) and Lyretail Killifish are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 200 litres is recommended.


At a Glance

Chocolate Loricaria (L062)

Loricaria cataphracta

Lyretail Killifish

Aphyosemion australe

🐠Family Group
Chocolate Loricaria (L062)
Catfish
Lyretail Killifish
Killifish
Temperament
Chocolate Loricaria (L062)
Peaceful (1/10)
Lyretail Killifish
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Chocolate Loricaria (L062)
23–27°C
Lyretail Killifish
21–26°C
pH Range
✓ Compatible
Chocolate Loricaria (L062)
6–7.5
Lyretail Killifish
5.5–7
Hardness (dGH)
✓ Compatible
Chocolate Loricaria (L062)
2–10
Lyretail Killifish
1–10
Water Type
✓ Compatible
Chocolate Loricaria (L062)
Freshwater Only
Lyretail Killifish
Freshwater Only
Flow Preference
✓ Compatible
Chocolate Loricaria (L062)
Moderate
Lyretail Killifish
Low
Min Tank Volume
Combined: 200 L
Chocolate Loricaria (L062)
200 L
Lyretail Killifish
38 L
Swimming Level
✓ Different zones
Chocolate Loricaria (L062)
Bottom
Lyretail Killifish
TopMiddle
🏷️Behavior Tags
Chocolate Loricaria (L062)
NocturnalShy / Slow Moving (Easily Stressed)
Lyretail Killifish
Jumper (Lid Required)Nano / Bite-sized (Predation Risk)Fry PredatorShy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Chocolate Loricaria (L062) and Lyretail Killifish?

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.

Chocolate Loricaria (L062)
Lyretail Killifish
Test both in my tank

Behaviour & Temperament

Chocolate Loricaria (L062) is a peaceful species (1/10), while Lyretail Killifish is generally mild-mannered (3/10). This modest difference means Lyretail Killifish may occasionally assert dominance over Chocolate Loricaria (L062).

In terms of spatial distribution, Chocolate Loricaria (L062) prefers the Bottom (Substrate) zone, whereas Lyretail Killifish occupies the Top (Surface) and Middle (Open Water) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Chocolate Loricaria (L062) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Lyretail Killifish is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 23°C and 26°C. Aim for the midpoint of this range (around 24.5°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 2–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Chocolate Loricaria (L062) and Lyretail Killifish together, plan for an aquarium of at least 200 litres with a minimum length of 120 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: Sand (Sifters), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels), Plants - Densely covered, Plants - Floating, Leaf Litter/Blackwater. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Chocolate Loricaria (L062) and Lyretail Killifish.

Show 5 more tank sizes

Frequently Asked Questions

Can Chocolate Loricaria (L062) and Lyretail Killifish live together?

Yes. Chocolate Loricaria (L062) and Lyretail Killifish are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Chocolate Loricaria (L062) and Lyretail Killifish need?

A minimum of 200 litres (tank length at least 120 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 Chocolate Loricaria (L062) and Lyretail Killifish together?

Keep the aquarium between 23°C and 26°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.

Are Chocolate Loricaria (L062) or Lyretail Killifish aggressive?

Chocolate Loricaria (L062) is peaceful (1/10) and Lyretail Killifish is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Chocolate Loricaria (L062) and Lyretail Killifish need?

Both species overlap in the 6–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Chocolate Loricaria (L062) being nocturnal affect compatibility?

Chocolate Loricaria (L062) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Chocolate Loricaria (L062) during evening hours.


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