Can Longear Sunfish and Panda Dwarf Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Longear Sunfish and Panda Dwarf Cichlid are not recommended as tank mates due to incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Longear Sunfish

Lepomis megalotis

Panda Dwarf Cichlid

Apistogramma nijsseni

🐠Family Group
Longear Sunfish
Other
Panda Dwarf Cichlid
Cichlids - South American
Temperament
Longear Sunfish
Aggressive (7/10)
Panda Dwarf Cichlid
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Longear Sunfish
10–25°C
Panda Dwarf Cichlid
23–29°C
pH Range
✓ Compatible
Longear Sunfish
6.5–8.5
Panda Dwarf Cichlid
5–6.5
Hardness (dGH)
✗ No overlap
Longear Sunfish
8–20
Panda Dwarf Cichlid
1–5
Water Type
✓ Compatible
Longear Sunfish
Freshwater Only
Panda Dwarf Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Longear Sunfish
Moderate
Panda Dwarf Cichlid
Low
Min Tank Volume
Combined: 208 L
Longear Sunfish
208 L
Panda Dwarf Cichlid
60 L
Swimming Level
Shared: 2 zones
Longear Sunfish
MiddleBottom
Panda Dwarf Cichlid
BottomMiddle
🏷️Behavior Tags
Longear Sunfish
Piscivore (Eats small/nano fish)Territorial (Defends specific area)Generally AggressiveAggressive to same species/look-alikesDigger (Disturbs Substrate)
Panda Dwarf Cichlid
Territorial (Defends specific area)Digger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)Fry Predator
Stocking calculator

Can your tank handle Longear Sunfish 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.

Longear Sunfish
Panda Dwarf Cichlid
Test both in my tank

Behaviour & Temperament

Longear Sunfish is a semi-aggressive species (7/10), while Panda Dwarf Cichlid is moderately assertive (6/10). This modest difference means Longear Sunfish may occasionally assert dominance over Panda Dwarf Cichlid.

Longear Sunfish 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.

Additional behavioural considerations to keep in mind: Aggressive fish may bully and stress shy, slow-moving species. Two territorial species may clash over territory, especially in smaller tanks.

Water Parameters

The safe temperature window for both species falls between 23°C and 25°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 6.5. Maintaining a stable value within this band is more important than hitting an exact number.

Hardness requirements are incompatible: Longear Sunfish needs 8–20 dGH while Panda Dwarf Cichlid requires 1–5 dGH.

Tank Setup

To house Longear Sunfish and Panda Dwarf Cichlid together, plan for an aquarium of at least 208 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, Plants - Densely covered. 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.

Why This Pairing Usually Fails in Practice

Longear Sunfish 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 Longear Sunfish and Panda Dwarf Cichlid.

Show 5 more tank sizes

Frequently Asked Questions

Can Longear Sunfish 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 Longear Sunfish and Panda Dwarf Cichlid need?

A minimum of 208 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 Longear Sunfish and Panda Dwarf Cichlid together?

Keep the aquarium between 23°C and 25°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Longear Sunfish or Panda Dwarf Cichlid aggressive?

Longear Sunfish is semi-aggressive (7/10) and Panda Dwarf Cichlid is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Longear Sunfish and Panda Dwarf Cichlid need?

Both species overlap in the 6.5–6.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Longear Sunfish's territorial behaviour?

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