Description
Overview
The Long Fin Black Widow Tetra is a flowing-finned variant of the classic Black Skirt Tetra, known for its striking black-and-silver body and elegant, elongated fins. Hardy, active, and social, it brings movement and contrast to community aquariums.
OriginNative to South America, particularly river basins in Paraguay, Brazil, and Argentina. The long-fin morph is selectively captive-bred for the aquarium hobby.
FeedingOmnivorous and very adaptable. Enjoys flakes, micro-pellets, frozen foods (brine shrimp, daphnia), and occasional live foods to promote colour and vitality.
Tank MatesExcellent for peaceful community tanks. Suitable companions include rasboras, peaceful tetras, dwarf cichlids, corydoras, and small gouramis. Avoid fin-nipping species due to their delicate, flowing fins.
AggressionMostly peaceful with only mild chasing, especially when kept in smaller groups. Best maintained in schools of 6 or more to reduce stress and encourage natural behaviour.
Experience LevelGreat for beginners—hardy, adaptable, and easy to care for.
Water Parameters- Temperature: 72°F – 80°F (22°C – 27°C)
- pH: 6.0 – 7.5
- Hardness: 4 – 15 dGH
Attractive, hardy, and full of movement, the Long Fin Black Widow Tetra adds elegance and personality to any peaceful community aquarium.
DX courier delivery is £20 per livestock order.
Delivery is scheduled for your selected delivery date and typically arrives before 1pm.
There is no minimum or maximum order value.
Additional information:
- In-stock livestock orders will be processed and dispatched for delivery on the date selected on the cart/basket page.
- Available delivery days are Wednesday, Thursday, Friday, and Saturday.
- If any stock issues affect your chosen delivery date, we will contact you as soon as possible by email or telephone.
- Shipping for dry goods is charged separately from livestock delivery. Dry goods are dispatched according to our standard delivery policy.
- All livestock remains covered by our 7-day guarantee.

