Can Peacock Bass Temensis and Sturgeon Catfish Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Possible with Caution

Keeping Peacock Bass Temensis and Sturgeon Catfish together is possible but requires caution, though some care is needed. 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

Peacock Bass Temensis

Cichla temensis

Sturgeon Catfish

Platystomatichthys sturio

🐠Family Group
Peacock Bass Temensis
Cichlids - South American
Sturgeon Catfish
Catfish
Temperament
Peacock Bass Temensis
Aggressive (7/10)
Sturgeon Catfish
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Peacock Bass Temensis
26–30°C
Sturgeon Catfish
22–26°C
pH Range
✓ Compatible
Peacock Bass Temensis
5.5–7.5
Sturgeon Catfish
6–7.5
Hardness (dGH)
✓ Compatible
Peacock Bass Temensis
2–15
Sturgeon Catfish
2–15
Water Type
✓ Compatible
Peacock Bass Temensis
Freshwater Only
Sturgeon Catfish
Freshwater Only
Flow Preference
✓ Compatible
Peacock Bass Temensis
High
Sturgeon Catfish
High
Min Tank Volume
Combined: 3000 L
Peacock Bass Temensis
3000 L
Sturgeon Catfish
800 L
Swimming Level
✓ Different zones
Peacock Bass Temensis
MiddleTop
Sturgeon Catfish
Bottom
🏷️Behavior Tags
Peacock Bass Temensis
Piscivore (Eats small/nano fish)Hyperactive / Fast SwimmerJumper (Lid Required)Generally Aggressive
Sturgeon Catfish
Piscivore (Eats small/nano fish)Hyperactive / Fast SwimmerNocturnalAggressive to same species/look-alikes
Stocking calculator

Can your tank handle Peacock Bass Temensis and Sturgeon Catfish?

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.

Peacock Bass Temensis
Sturgeon Catfish
Test both in my tank

Behaviour & Temperament

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

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

Worth noting: Sturgeon Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Peacock Bass Temensis 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 26°C. Aim for the midpoint of this range (around 26.0°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 2–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Peacock Bass Temensis and Sturgeon Catfish 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). Meeting these requirements will help both species thrive.

Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.

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. Peacock Bass Temensis and Sturgeon Catfish 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 Peacock Bass Temensis and Sturgeon Catfish 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 Peacock Bass Temensis and Sturgeon Catfish 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 Peacock Bass Temensis and Sturgeon Catfish together?

Keep the aquarium between 26°C and 26°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Peacock Bass Temensis or Sturgeon Catfish aggressive?

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

What pH do Peacock Bass Temensis and Sturgeon Catfish 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.

Does Sturgeon Catfish being nocturnal affect compatibility?

Sturgeon Catfish 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 Sturgeon Catfish during evening hours.

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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