Ghost – Twin Hi Fin Black Ghost Knifefish 8-10cm

Twin Hi Fin Black Ghost Knifefish – Feature Extended Fins on a Graceful Ribbon Swimmer

Twin Hi Fin Black Ghost Knifefish propels its elongated body with smooth undulations of prominent dorsal and anal fins that extend noticeably. This Apteronotus albifrons variant from northern South America moves through dense cover and open water with precision. Brisbane aquarists choose these fish for their distinctive finnage and reserved personality. Their shy disposition requires thoughtful tank design and quiet companions.

Size and Lifespan

Starts around 8 cm and develops toward 50 cm in well-managed systems. They commonly live 8–12 years when keepers maintain clean water and provide appropriate nutrition. Steady conditions support their growth and longevity effectively.

Ideal Tank Setup

Provide a tank of at least 600 litres to ensure ample swimming territory. Plant heavily with tall stems, position large driftwood branches, and create shaded retreats with roots. To replicate its natural habitat, diffuse lighting heavily and install powerful filtration for clear water. Keep pH 6.5–7.5 and temperature 26–28°C with frequent partial changes.

Compatible Tank Mates

Remains peaceful and avoids conflict with calm, similarly sized species. They retreat from overly active fish. Suitable tank mates include discus, geophagus, severum, angelfish, peaceful catfish, and larger community fish. Exclude small species or aggressive types that disturb their routine.

Diet and Feeding

Offer varied carnivorous foods to mimic natural prey. Frozen bloodworms, tubifex, prawns, krill, and earthworms serve as reliable options. Many accept sinking pellets after acclimation. Feed daily portions they finish quickly and rotate items for balanced nutrition.

Breeding and Behaviour of Twin Hi Fin Black Ghost Knifefish

Scatters eggs among plants in rare captive breeding scenarios. These fish navigate with anal-fin waves and seek cover during bright periods. Groups of four or more distribute any tension and encourage more activity. Spacious tanks with retreats support typical gliding and resting patterns.

Species Overview

• Species – Apteronotus albifrons
• Common Name – Black Ghost Knifefish (Hi Fin, Twin Fin)
• Origin – Northern South America, Amazon
• Diet – Carnivorous
• pH Range – 6.5 – 7.5
• Temperature – Tropical 26°C – 28°C
• Breed Type – Egg Layer
• Current Size – 8-10 cm
• Max Size – Approximately 50 cm
• Tank Size – Minimum 600 litres

FAQs about Twin Hi Fin Black Ghost Knifefish

What size tank is ideal for Twin Hi Fin Ghost Knifefish?
A 600-litre tank accommodates one or more, with extra space benefiting groups.

Can they live with other fish?
Yes, they pair with calm large peaceful species but avoid small or rowdy ones.

How often should I feed them?
Feed once daily with meaty foods they clear within minutes.

Do they need to be in groups?
Groups of four or more help reduce shyness and spread any dominance.

How long do they live?
They typically reach 8–12 years with clean water and proper care.

Add a Twin Hi Fin Ghost Knifefish to Your Aquarium Today!