Hockeystick Pencilfish

Nannostomus sp.

Hockeystick Pencilfish (Nannostomus sp.) — Varies care, Peaceful, under Other. Minimum tank in the app: 14.5 US gal min; aim for 72–82°F and pH 6.5–7.5. The Hockeystick Pencilfish appeals to aquarists seeking a modestly sized, engaging species.

Hockeystick Pencilfish (Nannostomus sp.) in a planted freshwater aquarium
Care levelVaries
TemperamentPeaceful
Min tank size14.5 US gal min
pH range6.5–7.5
Temperature72–82°F
Max size1.4 in (3.5 cm)
Captive lifespan5–10 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

South America

  • South America

Regional colours match the stocking calculator’s origin map.

Hockeystick Pencilfish Tank Setup

A well-structured tank with ample plants and hiding spots encourages natural behaviour, allowing the fish to thrive. Aim for moderate water flow and a soft substrate to mimic its natural habitat; lighting should be subdued to foster a sense of security without hindering visibility.

What Do Hockeystick Pencilfishs Eat?

As omnivores, they are generally adaptable in their diet, but feeding should be done in small amounts to avoid competition. They may benefit from varied food types to enhance coloration and health, though excessive competition can lead to stress, especially if larger or faster fish are present during feeding.

Hockeystick Pencilfish Tank Mates

Ideal companions include similarly sized, non-territorial species that occupy different vertical zones, such as small tetras or rasboras. Avoid overly boisterous or large tankmates that may intimidate or outcompete them; intraspecies aggression can arise if they feel crowded, so maintaining a suitable group size is key.

Are Hockeystick Pencilfishs Good for Beginners?

Care demand varies with setup and individual fish; use the numbers above as your baseline. New aquarists may overlook their need for a well-planted environment, leading to stress and decreased activity levels. underestimating their semi-aggressive nature can lead to conflicts with tankmates, particularly if the group size is too small or the tank is too crowded.

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