Can Mokele-mbembe Bichir and Peacock Bass Temensis Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Possible with Caution

Keeping Mokele-mbembe Bichir and Peacock Bass Temensis together is possible but requires caution due to mismatched flow preferences. Provide a spacious tank of at least 3000 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Mokele-mbembe Bichir

Polypterus mokelembembe

Peacock Bass Temensis

Cichla temensis

🐠Family Group
Mokele-mbembe Bichir
Oddballs
Peacock Bass Temensis
Cichlids - South American
Temperament
Mokele-mbembe Bichir
Semi-Aggressive (6/10)
Peacock Bass Temensis
Aggressive (7/10)
Temperature
✓ Compatible
Mokele-mbembe Bichir
24–28°C
Peacock Bass Temensis
26–30°C
pH Range
✓ Compatible
Mokele-mbembe Bichir
6.5–7.5
Peacock Bass Temensis
5.5–7.5
Hardness (dGH)
✓ Compatible
Mokele-mbembe Bichir
5–19
Peacock Bass Temensis
2–15
Water Type
✓ Compatible
Mokele-mbembe Bichir
Freshwater Only
Peacock Bass Temensis
Freshwater Only
Flow Preference
✗ No overlap
Mokele-mbembe Bichir
Low
Peacock Bass Temensis
High
Min Tank Volume
Combined: 3000 L
Mokele-mbembe Bichir
200 L
Peacock Bass Temensis
3000 L
Swimming Level
✓ Different zones
Mokele-mbembe Bichir
Bottom
Peacock Bass Temensis
MiddleTop
🏷️Behavior Tags
Mokele-mbembe Bichir
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorJumper (Lid Required)Nocturnal
Peacock Bass Temensis
Piscivore (Eats small/nano fish)Hyperactive / Fast SwimmerJumper (Lid Required)Generally Aggressive
Stocking calculator

Can your tank handle Mokele-mbembe Bichir and Peacock Bass Temensis?

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.

Mokele-mbembe Bichir
Peacock Bass Temensis
Test both in my tank

Behaviour & Temperament

Mokele-mbembe Bichir is a moderately assertive species (6/10), while Peacock Bass Temensis is semi-aggressive (7/10). This modest difference means Peacock Bass Temensis may occasionally assert dominance over Mokele-mbembe Bichir.

In terms of spatial distribution, Mokele-mbembe Bichir prefers the Bottom (Substrate) zone, whereas Peacock Bass Temensis occupies the Middle (Open Water) and Top (Surface) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Mokele-mbembe Bichir is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Mokele-mbembe Bichir is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 26°C and 28°C. Aim for the midpoint of this range (around 27.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 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 5–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Mokele-mbembe Bichir and Peacock Bass Temensis together, plan for an aquarium of at least 3000 litres with a minimum length of 300 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Densely covered. Meeting these requirements will help both species thrive.

Mokele-mbembe Bichir prefers Low (Still Water) flow while Peacock Bass Temensis needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.

Why This Pairing Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. Mokele-mbembe Bichir and Peacock Bass Temensis need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Frequently Asked Questions

Can Mokele-mbembe Bichir and Peacock Bass Temensis live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 3000 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Mokele-mbembe Bichir and Peacock Bass Temensis need?

A minimum of 3000 litres (tank length at least 300 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 Mokele-mbembe Bichir and Peacock Bass Temensis together?

Keep the aquarium between 26°C and 28°C. A target of around 27.0°C sits comfortably within both species' preferred ranges.

Are Mokele-mbembe Bichir or Peacock Bass Temensis aggressive?

Mokele-mbembe Bichir is moderately assertive (6/10) and Peacock Bass Temensis is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Mokele-mbembe Bichir and Peacock Bass Temensis need?

Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Mokele-mbembe Bichir being nocturnal affect compatibility?

Mokele-mbembe Bichir 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 Mokele-mbembe Bichir during evening hours.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 7, 2026
Last updated
May 7, 2026
Issues or corrections?
Contact the editorial team

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