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Black Widow Tetra (Gymnocorymbus ternetzi)
22–26°C · pH 6.5–7 · 68L
From £3.39Some sizes on sale
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22–26°C · pH 6.5–7 · 68L

23–29°C · pH 4–6 · 41L

22–27°C · pH 6–8

22–27°C · pH 6.5–8

22–27°C · pH 6.2–8

21–25°C · pH 6–8 · 250L

26–30°C · pH 6–7.5 · 54L

24–28°C · pH 6–7.6 · 41L

16–24°C · pH 6–8 · 90L

18–28°C · pH 6.5–8 · 10L

20–27°C · pH 6–8 · 54L
Also in packs from £9.99

22–27°C · pH 6.5–7 · 72L

22–29°C · pH 5–7

25–27°C · pH 6–8 · 72L

18–22°C · pH 6–8 · 54L

24–26°C · pH 6.5–8 · 41L

20–27°C · pH 6–8 · 54L

26–30°C · pH 5.5–7 · 60L

22–27°C · pH 6–8

22–28°C · pH 6–7.5 · 40L

22–27°C · pH 6–6.5 · 54L

Check species-specific water needs

25–27°C · pH 6–8
Also in packs from £20.99

17–27°C · pH 6.5–8