Can Gertrude's Spotted Blue-eye and Shovelnose Sturgeon Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Gertrude's Spotted Blue-eye and Shovelnose Sturgeon are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Gertrude's Spotted Blue-eye

Pseudomugil gertrudae

Shovelnose Sturgeon

Scaphirhynchus platorynchus

🐠Family Group
Gertrude's Spotted Blue-eye
Rainbowfish
Shovelnose Sturgeon
Oddballs
Temperament
Gertrude's Spotted Blue-eye
Peaceful (2/10)
Shovelnose Sturgeon
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Gertrude's Spotted Blue-eye
21–28°C
Shovelnose Sturgeon
10–22°C
pH Range
✓ Compatible
Gertrude's Spotted Blue-eye
6–7.5
Shovelnose Sturgeon
6.8–8
Hardness (dGH)
✓ Compatible
Gertrude's Spotted Blue-eye
5–15
Shovelnose Sturgeon
8–20
Water Type
✓ Compatible
Gertrude's Spotted Blue-eye
Freshwater Only
Shovelnose Sturgeon
Freshwater Only
Flow Preference
✓ Compatible
Gertrude's Spotted Blue-eye
Moderate
Shovelnose Sturgeon
High
Min Tank Volume
Combined: 3000 L
Gertrude's Spotted Blue-eye
38 L
Shovelnose Sturgeon
3000 L
Swimming Level
✓ Different zones
Gertrude's Spotted Blue-eye
TopMiddle
Shovelnose Sturgeon
Bottom
🏷️Behavior Tags
Gertrude's Spotted Blue-eye
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Shovelnose Sturgeon
Hyperactive / Fast SwimmerDigger (Disturbs Substrate)Shrimp EaterPiscivore (Eats small/nano fish)Jumper (Lid Required)
Stocking calculator

Can your tank handle Gertrude's Spotted Blue-eye and Shovelnose 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.

Gertrude's Spotted Blue-eye
Shovelnose Sturgeon
Test both in my tank

Behaviour & Temperament

Gertrude's Spotted Blue-eye is a peaceful species (2/10), while Shovelnose Sturgeon is generally mild-mannered (3/10). This modest difference means Shovelnose Sturgeon may occasionally assert dominance over Gertrude's Spotted Blue-eye.

In terms of spatial distribution, Gertrude's Spotted Blue-eye prefers the Top (Surface) and Middle (Open Water) zones, whereas Shovelnose Sturgeon 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.

There is a critical concern: the Nano / Bite-sized (Predation Risk) behaviour of one fish directly conflicts with the Piscivore (Eats small/nano fish) trait of the other — piscivorous fish will prey on nano-sized tank mates..

Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.

Worth noting: Gertrude's Spotted Blue-eye is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 21°C and 22°C. Aim for the midpoint of this range (around 21.5°C) for optimal comfort.

Both fish can tolerate a pH between 6.8 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 8–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Gertrude's Spotted Blue-eye and Shovelnose Sturgeon 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.

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, Plants - Floating, Leaf Litter/Blackwater, Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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

Gertrude's Spotted Blue-eye and Shovelnose 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. Shovelnose Sturgeon is a known shrimp eater and may prey on small invertebrates or nano fish like Gertrude's Spotted Blue-eye.

Frequently Asked Questions

Can Gertrude's Spotted Blue-eye and Shovelnose Sturgeon live together?

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

What size tank do Gertrude's Spotted Blue-eye and Shovelnose Sturgeon 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 Gertrude's Spotted Blue-eye and Shovelnose Sturgeon together?

Keep the aquarium between 21°C and 22°C. A target of around 21.5°C sits comfortably within both species' preferred ranges.

Are Gertrude's Spotted Blue-eye or Shovelnose Sturgeon aggressive?

Gertrude's Spotted Blue-eye is peaceful (2/10) and Shovelnose Sturgeon is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Gertrude's Spotted Blue-eye and Shovelnose Sturgeon need?

Both species overlap in the 6.8–7.5 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 11, 2026
Last updated
May 11, 2026
Issues or corrections?
Contact the editorial team

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