Three-lined Pencilfish (Nannostomus trifasciatus)
Nannostomus trifasciatus is the photographed pencil: three lines, red in the males, and nipping that stays inside the school if you keep twelve in…
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Diptail Pencilfish (Nannostomus eques)
Nannostomus eques hangs at 45 degrees in stained Amazon water — the hockey-stick pencilfish of the top third, shy, particular, and not a tetra th…
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Beckford's Pencilfish (Nannostomus beckfordi)
Nannostomus beckfordi is the pencilfish that forgives: a level-swimming Guiana characin whose midwater fencing looks like a school at eight fish an…
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