Hemigrammus beckfordi, more commonly known as the Golden Pencilfish or Beckfords Pencilfish, is a slender, strikingly coloured freshwater species native to slow-moving streams and creeks of South America, particularly in Guyana and Brazil. Known for their golden body and horizontal black stripe, these fish add both activity and visual interest to a peaceful, planted community aquarium. Their calm demeanor and small size make them an excellent choice for aquarists seeking a harmonious and biodiverse setup.

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Features of a Hemigrammus beckfordi

• Grows up to 5 cm in length

• Characteristic golden body with a bold black lateral stripe

• Fins may show reddish or orange hues, especially in males

• Peaceful, non-aggressive temperament

• Best kept in small shoals of 6 or more

• Lifespan ranges from 3 to 5 years under optimal conditions

The Best Aquarium Size for Hemigrammus beckfordi

A tank of at least 60 litres is suitable for a small group of Hemigrammus beckfordi. Their active nature requires horizontal swimming space, and additional volume improves stability and allows for a more diverse aquascape. A 90-litre aquarium or larger is ideal when including tank mates.

Suitable aquariums to consider include:

• Yiding Tanks
• Aqua One Tanks
• Oceason Aquariums

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Tank Mate Compatibility for Hemigrammus beckfordi

• Ember Tetra

• Pygmy Corydoras

• Hatchetfish

• Honey Gourami

• Chili Rasbora

Diet for Hemigrammus beckfordi

An omnivorous species, Beckfords Pencilfish thrives on a varied diet. Offer micro pellets, high-quality flakes, and a mix of frozen or live foods such as mosquito larvae, brine shrimp, and micro worms. Frequent, small feedings help mimic their natural grazing behaviour. Plant-based supplements can also be included for dietary diversity.

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Aquarium Setup Hemigrammus beckfordi

Aquarium Filtration
A sponge or low-flow internal filter is recommended. These fish prefer slow-moving waters, so avoid strong currents.

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Aquarium Plants
Dense vegetation with fine-leaved species like Cabomba, Water Wisteria, and Java moss provides cover and encourages natural shoaling behaviour.

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Aquarium Lighting
Soft to moderate lighting is best. Dimmer light settings, or the use of floating plants, reduce stress and highlight the golden and black contrast.

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Aquarium Heating
Maintain water temperatures between 2428C using a consistent heater. Sudden fluctuations should be avoided.

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Aquarium Substrate
Fine sand or smooth gravel in dark tones enhances the colours of the fish and replicates their natural biotope.

A variety ofSubstratesare available at Coburg Aquarium.

Aquarium Decorations
Use natural driftwood, leaf litter, and rock caves to provide hiding places and visual barriers. All decorations should be smooth and chemically inert.

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