Blue Purple Emperor Tetra

Inpaichthys kerri

Blue Purple Emperor Tetra is a peaceful middle-to-top swimmer. Keep in a loose group of 6+.

PeacefulMiddle to top swimmerKeep in a loose group of 6+Beginner

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Explore compatibility, care or problems using this guide and your aquarium’s conditions.

Quick facts

Adult size: ≤ 1.4" (≤ 3.5 cm)
Aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Care level: Beginner
Temperament: Peaceful
Swimming zone: Middle to top swimmer
Temperature: 75–81°F (24–27°C)
pH: 5.5–7
GH: 1–12 dGH
Diet: Omnivore
Lifespan: up to 6 years
Group behavior: Keep in a loose group of 6+

Care requirements

Care level: Beginner.

Lifespan: up to 6 years.

Aquarium size and space needs

Minimum aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 24–27 °C, pH 5.5–7, GH 1–12 dGH.

Temperament and compatibility

Blue Purple Emperor Tetra is peaceful and suits calm community fish.

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.

Feeding

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

Feed appropriately small prepared and frozen foods; scatter food so shy fish can feed without displacement.

Before adding this fish

Plan for an aquarium of 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Make room for its social group.
Avoid aggressive or highly competitive fish.
Keep in a loose group of 6+.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Brazil.

Similar fish profiles

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

Black Arrow Royal Tetra Inpaichthys luizae Same genus Same family Similar care level Beginner – Intermediate ≤ 1.6" (≤ 4 cm) 72–79°F (22–26°C) Black Neon Tetra Hyphessobrycon herbertaxelrodi Same family Similar care level Same temperament Beginner – Intermediate ≤ 1.4" (≤ 3.5 cm) 68–82°F (20–28°C) Black Phantom Tetra Megalamphodus megalopterus Same family Similar care level Same temperament Beginner – Intermediate ≤ 2" (≤ 5 cm) 72–82°F (22–28°C) Bleeding Blue Tetra Hyphessobrycon margitae Same family Similar care level Same temperament Beginner – Intermediate 1.6–2" (4–5 cm) 73–79°F (23–26°C) Bloodfin Tetra Aphyocharax anisitsi Same family Similar care level Same temperament Beginner ≤ 2.2" (≤ 5.5 cm) 64–82°F (18–28°C) Black Heart Tetra Hyphessobrycon copelandi Same family Similar care level Same temperament Beginner – Intermediate ≤ 1.6" (≤ 4 cm) 75–82°F (24–28°C)

FAQ

How large does Blue Purple Emperor Tetra get?

Blue Purple Emperor Tetra reaches ≤ 1.4" (≤ 3.5 cm).

What aquarium size does Blue Purple Emperor Tetra need?

Use an aquarium of at least 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.

Is Blue Purple Emperor Tetra peaceful?

Yes. Blue Purple Emperor 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 Purple Emperor Tetra?

Keep it between 24 to 27 °C.

Should Blue Purple Emperor Tetra be kept alone or in a group?

Blue Purple Emperor Tetra: Keep in a loose group of 6+.