Easy
Black Widow Tetra (Gymnocorymbus ternetzi)
22–26°C · pH 6.5–7 · 68L
From £3.39Some sizes on sale
Gymnocorymbus
4 products
Compare Black Widow and Gold Widow Tetras in standard and longfin forms. Choose the variety while planning a shoal and suitable companions.
Products in Gymnocorymbus
Help with your choice
Choose a form, then consider fins and activity
These offers retain black, gold and longfin forms of Gymnocorymbus ternetzi. Read the chosen supplied grade and keep a suitable group with swimming room. Screen companions for fin-nipping and feeding competition; a longfin form deserves particular care when choosing active neighbours. Colour does not establish sex.
Ask about your aquariumPlan the adult shoal rather than a single feature fish
Allow space for the full group, with cover that leaves usable swimming lanes. Compare the selected listing’s adult guidance and measured water requirements with the aquarium you have. A small dispatch grade is not a reason to crowd a growing shoal.
Compare Emperor and Rainbow Tetras