Longnose Peppermint Otocinclus

Rhinotocinclus longirostris

Longnose Peppermint Otocinclus is a peaceful bottom-to-middle swimmer.

PeacefulBottom to middle swimmerBeginner – Intermediate

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Need help with Longnose Peppermint Otocinclus?

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

Quick facts

Adult size: ≤ 1" (≤ 2.5 cm)
Aquarium size: ≥ 23.6" (≥ 60 cm) minimum length
Care level: Beginner – Intermediate
Temperament: Peaceful
Swimming zone: Bottom to middle swimmer
Temperature: 75–81°F (24–27°C)
pH: 6–7.5
GH: 1–8 dGH
KH: 0–4 dKH
Diet: Omnivore
Lifespan: up to 5 years

Care requirements

Care level: Beginner – Intermediate.

Lifespan: up to 5 years.

Water parameters

Suitable water: temperature 24–27 °C, pH 6–7.5, GH 1–8 dGH, KH 0–4 dKH.

Temperament and compatibility

Longnose Peppermint Otocinclus is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses the lower to middle part of the aquarium, so leave enough open substrate area for movement and feeding.

Feeding

As an omnivore, Longnose Peppermint Otocinclus should receive a varied diet rather than one repeated food type.

Before adding this fish

Plan for an aquarium of ≥ 23.6" (≥ 60 cm) minimum length.
Avoid aggressive or highly competitive fish.
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.

Blue Eyed Plecostomus Panaque cochliodon Same family Similar care level Same temperament Intermediate – Advanced ≤ 11.8" (≤ 30 cm) 72–82°F (22–28°C) African Glass Catfish Pareutropius debauwi Similar care level Same temperament Bottom dweller Intermediate – Advanced ≤ 3.9" (≤ 10 cm) 72–81°F (22–27°C) African Spottail Tetra Brachypetersius altus Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 2.6" (≤ 6.5 cm) 75–79°F (24–26°C) Ajamaru Rainbowfish Melanotaenia ajamaruensis Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 3.8" (≤ 9.7 cm) 81–86°F (27–30°C) Anus Spot Lampeye Killifish Poropanchax stigmatopygus Similar care level Same temperament Same swimming zone Intermediate ≤ 0.9" (≤ 2.4 cm) 72–79°F (22–26°C) Araguaia Corydoras Hoplisoma araguaiaense Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 73–79°F (23–26°C)

FAQ

How large does Longnose Peppermint Otocinclus get?

Longnose Peppermint Otocinclus reaches ≤ 1" (≤ 2.5 cm).

What aquarium size does Longnose Peppermint Otocinclus need?

Use an aquarium of at least ≥ 23.6" (≥ 60 cm) minimum length.

Is Longnose Peppermint Otocinclus peaceful?

Yes. Longnose Peppermint Otocinclus 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 Longnose Peppermint Otocinclus?

Keep it between 24 to 27 °C.