Care guide at a glance
Gymnocorymbus ternetzi
Description
A deep-bodied tetra, dark grey-black at the rear with a large flowing anal fin. The black fades to silver-grey with age, which is normal rather than a sign of ill health.
Feeding
Flake, pellets and frozen foods. Enthusiastic and easy to feed.
Compatibility
Can nip fins, particularly in small groups. Keep in groups of eight or more and avoid slow, long-finned tankmates such as guppies, bettas and angelfish.
Behaviour and personality
Active and assertive. Occupies the middle of the tank and feeds vigorously.
Before you buy
The dramatic black of a young fish fades substantially as it matures. If you want the dark colour permanently, this is not the fish. Nipping is much reduced in larger groups.
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.