Can Altolamprologus Compressiceps and Thinbar Datnoid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Altolamprologus Compressiceps and Thinbar Datnoid 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

Altolamprologus Compressiceps

Altolamprologus compressiceps

Thinbar Datnoid

Datnioides undecimradiatus

🐠Family Group
Altolamprologus Compressiceps
Cichlids - African
Thinbar Datnoid
Oddballs
Temperament
Altolamprologus Compressiceps
Semi-Aggressive (6/10)
Thinbar Datnoid
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Altolamprologus Compressiceps
24–27°C
Thinbar Datnoid
24–28°C
pH Range
✗ No overlap
Altolamprologus Compressiceps
7.8–9
Thinbar Datnoid
6.5–7.5
Hardness (dGH)
✓ Compatible
Altolamprologus Compressiceps
10–25
Thinbar Datnoid
5–18
Water Type
✓ Compatible
Altolamprologus Compressiceps
Freshwater Only
Thinbar Datnoid
Brackish Tolerant
Flow Preference
✓ Compatible
Altolamprologus Compressiceps
Moderate
Thinbar Datnoid
Moderate
Min Tank Volume
Combined: 570 L
Altolamprologus Compressiceps
150 L
Thinbar Datnoid
570 L
Swimming Level
Shared: 2 zones
Altolamprologus Compressiceps
BottomMiddle
Thinbar Datnoid
MiddleBottom
🏷️Behavior Tags
Altolamprologus Compressiceps
Piscivore (Eats small/nano fish)Fry PredatorShrimp EaterTerritorial (Defends specific area)Shy / Slow Moving (Easily Stressed)Aggressive to same species/look-alikes
Thinbar Datnoid
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Territorial (Defends specific area)Aggressive to same species/look-alikes
Stocking calculator

Can your tank handle Altolamprologus Compressiceps and Thinbar Datnoid?

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.

Altolamprologus Compressiceps
Thinbar Datnoid
Test both in my tank

Behaviour & Temperament

Both Altolamprologus Compressiceps and Thinbar Datnoid are moderately assertive species with an aggression score of 6/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

Altolamprologus Compressiceps and Thinbar Datnoid both frequent the Bottom (Substrate) and Middle (Open Water) 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: Two territorial species may clash over territory, especially in smaller tanks.

Water Parameters

The safe temperature window for both species falls between 24°C and 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Altolamprologus Compressiceps (7.8–9) and Thinbar Datnoid (6.5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–18 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Altolamprologus Compressiceps and Thinbar Datnoid together, plan for an aquarium of at least 570 litres with a minimum length of 150 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), Shells (Breeding/Hiding), Driftwood (Digestion/Hiding), Plants - Floating. 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

Altolamprologus Compressiceps and Thinbar Datnoid 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 Altolamprologus Compressiceps and Thinbar Datnoid.

Frequently Asked Questions

Can Altolamprologus Compressiceps and Thinbar Datnoid live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Altolamprologus Compressiceps and Thinbar Datnoid need?

A minimum of 570 litres (tank length at least 150 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 Altolamprologus Compressiceps and Thinbar Datnoid together?

Keep the aquarium between 24°C and 27°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Altolamprologus Compressiceps or Thinbar Datnoid aggressive?

Altolamprologus Compressiceps is moderately assertive (6/10) and Thinbar Datnoid is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Altolamprologus Compressiceps and Thinbar Datnoid need?

Their pH requirements do not overlap. Altolamprologus Compressiceps prefers 7.8–9, while Thinbar Datnoid needs 6.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Altolamprologus Compressiceps's territorial behaviour?

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

Related Comparisons

Altolamprologus Compressiceps & Afra Cichlid

·

Possible with Caution
Altolamprologus Compressiceps: PeacefulAfra Cichlid: Peaceful

Altolamprologus Compressiceps & African Jewel Cichlid

·

Not Recommended
Altolamprologus Compressiceps: PeacefulAfrican Jewel Cichlid: Peaceful

Altolamprologus Compressiceps & Altolamprologus Calvus

·

Possible with Caution
Altolamprologus Compressiceps: PeacefulAltolamprologus Calvus: Peaceful

Altolamprologus Compressiceps & Aurora Yellow Mbuna

·

Possible with Caution
Altolamprologus Compressiceps: PeacefulAurora Yellow Mbuna: Peaceful

Altolamprologus Compressiceps & Black Diamond Cichlid

·

Possible with Caution
Altolamprologus Compressiceps: PeacefulBlack Diamond Cichlid: Peaceful

Altolamprologus Compressiceps & Blue Dolphin (Hap)

·

Possible with Caution
Altolamprologus Compressiceps: PeacefulBlue Dolphin (Hap): Peaceful

Thinbar Datnoid & New Guinea Tigerfish

·

Possible with Caution
Thinbar Datnoid: PeacefulNew Guinea Tigerfish: Peaceful

Thinbar Datnoid & Silver Datnoid (Silver Tigerfish)

·

Possible with Caution
Thinbar Datnoid: PeacefulSilver Datnoid (Silver Tigerfish): Peaceful

Thinbar Datnoid & Silver Tiger Perch (American Tigerfish)

·

Possible with Caution
Thinbar Datnoid: PeacefulSilver Tiger Perch (American Tigerfish): Peaceful

Thinbar Datnoid & African Arowana

·

Possible with Caution
Thinbar Datnoid: PeacefulAfrican Arowana: Peaceful

Thinbar Datnoid & Alligator Gar

·

Possible with Caution
Thinbar Datnoid: PeacefulAlligator Gar: Peaceful

Thinbar Datnoid & Black Ghost Knifefish

·

Possible with Caution
Thinbar Datnoid: PeacefulBlack Ghost Knifefish: Peaceful