Can Keyhole Cichlid and Steindachner Dwarf Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Ideal Tank Mates

Yes, Keyhole Cichlid and Steindachner Dwarf Cichlid are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 110 litres is recommended.


At a Glance

Keyhole Cichlid

Cleithracara maronii

Steindachner Dwarf Cichlid

Apistogramma steindachneri

🐟Family Group
Keyhole Cichlid
Cichlids - South American
Steindachner Dwarf Cichlid
Cichlids - South American
Temperament
Keyhole Cichlid
Peaceful (2/10)
Steindachner Dwarf Cichlid
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Keyhole Cichlid
22–28°C
Steindachner Dwarf Cichlid
22–28°C
pH Range
✓ Compatible
Keyhole Cichlid
6–7.5
Steindachner Dwarf Cichlid
5–7.5
Hardness (dGH)
✓ Compatible
Keyhole Cichlid
2–15
Steindachner Dwarf Cichlid
1–12
Water Type
✓ Compatible
Keyhole Cichlid
Freshwater Only
Steindachner Dwarf Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Keyhole Cichlid
Low
Steindachner Dwarf Cichlid
Low
Min Tank Volume
Combined: 110 L
Keyhole Cichlid
110 L
Steindachner Dwarf Cichlid
80 L
Swimming Level
Shared: 2 zones
Keyhole Cichlid
MiddleBottom
Steindachner Dwarf Cichlid
MiddleBottom
🏷️Behavior Tags
Keyhole Cichlid
Shy / Slow Moving (Easily Stressed)Fry Predator
Steindachner Dwarf Cichlid
Territorial (Defends specific area)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Keyhole Cichlid and Steindachner 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.

Keyhole Cichlid
Steindachner Dwarf Cichlid
Test both in my tank

Behaviour & Temperament

Keyhole Cichlid is a peaceful species (2/10), while Steindachner Dwarf Cichlid is generally mild-mannered (4/10). This modest difference means Steindachner Dwarf Cichlid may occasionally assert dominance over Keyhole Cichlid.

Keyhole Cichlid and Steindachner 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 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 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 2–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Keyhole Cichlid and Steindachner Dwarf Cichlid together, plan for an aquarium of at least 110 litres with a minimum length of 90 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: Driftwood (Digestion/Hiding), Plants - Densely covered, Leaf Litter/Blackwater, Sand (Sifters). 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 Works in Practice

Keyhole Cichlid and Steindachner Dwarf Cichlid work best when the tank gives each fish enough room to use its preferred level of the aquarium and enough cover to avoid constant visual contact. The score matters, but the real-world success usually comes from matching their pace, keeping water stable, and resisting the urge to crowd the tank just because the pair looks safe on paper.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Keyhole Cichlid and Steindachner Dwarf Cichlid.

Show 10 more tank sizes

Frequently Asked Questions

Can Keyhole Cichlid and Steindachner Dwarf Cichlid live together?

Yes. Keyhole Cichlid and Steindachner Dwarf Cichlid are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Keyhole Cichlid and Steindachner Dwarf Cichlid need?

A minimum of 110 litres (tank length at least 90 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 Keyhole Cichlid and Steindachner Dwarf Cichlid 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 Keyhole Cichlid or Steindachner Dwarf Cichlid aggressive?

Keyhole Cichlid is peaceful (2/10) and Steindachner Dwarf Cichlid is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Keyhole Cichlid and Steindachner Dwarf Cichlid need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Steindachner Dwarf Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Steindachner 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.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 11, 2026
Last updated
May 11, 2026
Issues or corrections?
Contact the editorial team

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