Blue Diamond Tetra

Alestopetersius smykalai

Blue Diamond Tetra is a peaceful middle-to-top swimmer. Keep in a school of 10+.

PeacefulMiddle to top swimmerKeep in a school of 10+Intermediate

Save this fish or add it directly to one of your aquariums.

Quick facts

Adult size
≤ 6 cm (≤ 2.4 in)
Aquarium size
160 L or larger / ≥ 120 cm (≥ 47.2 in) minimum length
Care level
Intermediate
Temperament
Peaceful
Swimming zone
Middle to top swimmer
Temperature
23–27 °C
pH
6–7.5
GH
8–15 dGH
Diet
Omnivore
Lifespan
up to 5 years
Group behavior
Keep in a school of 10+

Care requirements

Care level: Intermediate.

Lifespan: up to 5 years.

Aquarium size and space needs

Minimum aquarium size: 160 L or larger / ≥ 120 cm (≥ 47.2 in) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 23–27 °C, pH 6–7.5, GH 8–15 dGH.

Temperament and compatibility

Blue Diamond Tetra is peaceful and suits calm community fish.

Keep in a school of 10+.

Swimming zone and behavior

This fish uses the middle to upper part of the aquarium, so leave enough open swimming space for movement and feeding. Keep in a school of 10+.

Feeding

As an omnivore, Blue Diamond Tetra should receive a varied diet rather than one repeated food type.

Natural habitat and origin

Origin: Nigeria.

Before adding this fish

  • Plan for an aquarium of 160 L or larger / ≥ 120 cm (≥ 47.2 in) minimum length.
  • Make room for its social group.
  • Avoid aggressive or highly competitive fish.
  • Keep in a school of 10+.
  • Offer a varied diet that matches this species.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

African Spottail Tetra Brachypetersius altus Same family Similar care level Same temperament Beginner – Intermediate ≤ 6 cm (≤ 2.4 in) 22–26 °C Blue Eyed Congo Tetra Phenacogrammus aurantiacus Same family Similar care level Same temperament Beginner – Intermediate ≤ 10 cm (≤ 3.9 in) 22–27 °C African Red Eyed Tetra Arnoldichthys spilopterus Same family Similar care level Same temperament Beginner – Intermediate ≤ 8 cm (≤ 3.1 in) 22–27 °C African Moon Tetra Bathyaethiops caudomaculatus Same family Similar care level Same temperament Beginner – Intermediate ≤ 8 cm (≤ 3.1 in) 22–25 °C Blue Spot African Tetra Brycinus poptae Same family Similar care level Same temperament Intermediate ≤ 16 cm (≤ 6.3 in) 21–27 °C Adonis Tetra Lepidarchus adonis Same family Similar care level Same temperament Intermediate ≤ 2 cm (≤ 0.8 in) 21–26 °C

FAQ

How large does Blue Diamond Tetra get?

Blue Diamond Tetra reaches ≤ 6 cm (≤ 2.4 in).

What aquarium size does Blue Diamond Tetra need?

Use an aquarium of at least 160 L or larger / ≥ 120 cm (≥ 47.2 in) minimum length.

Is Blue Diamond Tetra peaceful?

Yes. Blue Diamond Tetra is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.

What temperature is suitable for Blue Diamond Tetra?

Keep it between 23 to 27 °C.

Should Blue Diamond Tetra be kept alone or in a group?

Blue Diamond Tetra: Keep in a school of 10+.

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