Can Bentos Tetra and Pacific Sturgeon Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Not Recommended

Bentos Tetra and Pacific Sturgeon are not recommended as tank mates due to no temperature overlap. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Bentos Tetra

Hyphessobrycon bentosi

Pacific Sturgeon

Acipenser transmontanus

🐠Family Group
Bentos Tetra
Characins
Pacific Sturgeon
Oddballs
Temperament
Bentos Tetra
Peaceful (2/10)
Pacific Sturgeon
Mostly Peaceful (3/10)
Temperature
✗ No overlap
Bentos Tetra
23–28°C
Pacific Sturgeon
10–22°C
pH Range
✓ Compatible
Bentos Tetra
5.5–7.5
Pacific Sturgeon
6.5–8
Hardness (dGH)
✓ Compatible
Bentos Tetra
1–12
Pacific Sturgeon
4–20
Water Type
✓ Compatible
Bentos Tetra
Freshwater Only
Pacific Sturgeon
Brackish Tolerant
Flow Preference
✗ No overlap
Bentos Tetra
Low
Pacific Sturgeon
High
Min Tank Volume
Combined: 20000 L
Bentos Tetra
60 L
Pacific Sturgeon
20000 L
Swimming Level
Shared: 1 zone
Bentos Tetra
MiddleBottom
Pacific Sturgeon
Bottom
🏷️Behavior Tags
Bentos Tetra
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Pacific Sturgeon
Piscivore (Eats small/nano fish)Digger (Disturbs Substrate)Hyperactive / Fast SwimmerShrimp EaterSnail EaterAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Bentos Tetra and Pacific Sturgeon?

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.

Bentos Tetra
Pacific Sturgeon
Test both in my tank

Behaviour & Temperament

Bentos Tetra is a peaceful species (2/10), while Pacific Sturgeon is generally mild-mannered (3/10). This modest difference means Pacific Sturgeon may occasionally assert dominance over Bentos Tetra.

Bentos Tetra and Pacific Sturgeon both frequent the 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Aggressive eaters may outcompete shy fish for food, leading to malnutrition.

Water Parameters

There is no temperature overlap between Bentos Tetra (23–28°C) and Pacific Sturgeon (10–22°C). This fundamental mismatch makes long-term cohabitation impractical.

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 4–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bentos Tetra and Pacific Sturgeon together, plan for an aquarium of at least 20000 litres with a minimum length of 600 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: Plants - Densely covered, Leaf Litter/Blackwater, Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

Bentos Tetra prefers Low (Still Water) flow while Pacific Sturgeon 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 Usually Fails in Practice

Bentos Tetra and Pacific Sturgeon 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.

Diet & Feeding

Feeding time deserves special attention with this pairing. Pacific Sturgeon is an aggressive eater that may prevent Bentos Tetra from getting enough food.

Because Pacific Sturgeon is a fast, competitive feeder, consider using sinking pellets or feeding at opposite ends of the setup to ensure Bentos Tetra receives an adequate share.

Frequently Asked Questions

Can Bentos Tetra and Pacific Sturgeon live together?

No. This combination is not recommended. Key incompatibilities — such as non-overlapping temperature ranges — make cohabitation unsafe.

What size tank do Bentos Tetra and Pacific Sturgeon need?

A minimum of 20000 litres (tank length at least 600 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 Bentos Tetra and Pacific Sturgeon together?

Unfortunately, there is no temperature range that satisfies both species. Bentos Tetra requires 23–28°C, while Pacific Sturgeon needs 10–22°C.

Are Bentos Tetra or Pacific Sturgeon aggressive?

Bentos Tetra is peaceful (2/10) and Pacific Sturgeon is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bentos Tetra and Pacific Sturgeon 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.

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?
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