Can Altolamprologus Compressiceps and Bentos Tetra Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 2, 2026
Not Recommended

Altolamprologus Compressiceps and Bentos Tetra 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

Bentos Tetra

Hyphessobrycon bentosi

🐠Family Group
Altolamprologus Compressiceps
Cichlids - African
Bentos Tetra
Characins
Temperament
Altolamprologus Compressiceps
Semi-Aggressive (6/10)
Bentos Tetra
Peaceful (2/10)
Temperature
✓ Compatible
Altolamprologus Compressiceps
24–27°C
Bentos Tetra
23–28°C
pH Range
✗ No overlap
Altolamprologus Compressiceps
7.8–9
Bentos Tetra
5.5–7.5
Hardness (dGH)
✓ Compatible
Altolamprologus Compressiceps
10–25
Bentos Tetra
1–12
Water Type
✓ Compatible
Altolamprologus Compressiceps
Freshwater Only
Bentos Tetra
Freshwater Only
Flow Preference
✓ Compatible
Altolamprologus Compressiceps
Moderate
Bentos Tetra
Low
Min Tank Volume
Combined: 150 L
Altolamprologus Compressiceps
150 L
Bentos Tetra
60 L
Swimming Level
Shared: 2 zones
Altolamprologus Compressiceps
BottomMiddle
Bentos Tetra
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
Bentos Tetra
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Altolamprologus Compressiceps and Bentos Tetra?

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
Bentos Tetra
Test both in my tank

Behaviour & Temperament

Altolamprologus Compressiceps is a moderately assertive species (6/10), while Bentos Tetra is peaceful (2/10). This notable difference means Altolamprologus Compressiceps may occasionally assert dominance over Bentos Tetra.

Altolamprologus Compressiceps and Bentos Tetra 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

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 Bentos Tetra (5.5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Altolamprologus Compressiceps and Bentos Tetra together, plan for an aquarium of at least 150 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: Sand (Sifters), Shells (Breeding/Hiding), Plants - Densely covered, 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.

Why This Pairing Usually Fails in Practice

Altolamprologus Compressiceps and Bentos Tetra 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 Bentos Tetra.

Show 9 more tank sizes

Frequently Asked Questions

Can Altolamprologus Compressiceps and Bentos Tetra 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 Bentos Tetra need?

A minimum of 150 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 Altolamprologus Compressiceps and Bentos Tetra 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 Bentos Tetra aggressive?

Altolamprologus Compressiceps is moderately assertive (6/10) and Bentos Tetra is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Altolamprologus Compressiceps and Bentos Tetra need?

Their pH requirements do not overlap. Altolamprologus Compressiceps prefers 7.8–9, while Bentos Tetra needs 5.5–7.5. 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 2, 2026
Last updated
May 2, 2026
Issues or corrections?
Contact the editorial team

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