A beginner-friendly fish guide

Spotted Blue-eye

Spotted Blue-eye

Pseudomugil gertrudae

Gentle temperament; shoaling fish. Check the planner before choosing tank mates.

Beginner level 3/5

A good environment

Recommended temperature
23 ~ 27°C
Recommended pH
5.5 ~ 7.3
Preferred water hardness
Medium hardness
Minimum aquarium
41L or more

Reference sources list a wider range of 21~28°C and pH 4.5~7.5. The planner uses the narrower range above as a safer starting point for beginners.

At a glance

Group
Rainbowfish
Average adult size
about 3.8 cm (small)
Minimum tank length
about 45 cm
Activity level
Moderate
Waste level
Low
Lid recommended
Yes
Mature tank preferred
Yes

Temperament & group size

Gentle temperament; Shoaling fish.

For a comfortable group, keep at least 6.

Usually swims in the upper & middle.

Tank-mate notes

Adult shrimp may do well with hiding places, though individual fish vary.

Baby shrimp may be eaten. A separate breeding tank is safer.

Check each combination carefully, especially when size or temperament differs.

Add Spotted Blue-eye to my aquarium

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Frequently asked questions

How big does Spotted Blue-eye get, and what tank size does it need?

Adults average about 3.8 cm, a small species. The planner recommends an aquarium of at least 41 L and about 45 cm long.

What water temperature and pH does Spotted Blue-eye need?

The planner range is 23~27°C and pH 5.5~7.3, with medium hardness. Reference sources list a wider range of 21~28°C and pH 4.5~7.5. The planner uses the narrower range above as a safer starting point for beginners.

How many Spotted Blue-eye should be kept together?

Shoaling fish: keep at least 6. Temperament is gentle.

Can Spotted Blue-eye live with shrimp?

Adult shrimp: usually fine. Baby shrimp: not recommended.

Is Spotted Blue-eye a good fish for beginners?

Beginner level 3/5. A lid is recommended. A mature, cycled aquarium is preferred. Activity: moderate; waste: low.