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Octopus Fluids Cerberus 30 mL sheen fountain pen ink bottle with its illustrated label and black cap
  • Octopus Fluids Cerberus 30 mL sheen fountain pen ink bottle with its illustrated label and black cap
  • Octopus Fluids Cerberus ink bottle displayed on fabric with information about its sheen effect
  • Octopus Fluids Cerberus ink bottle beside a fountain pen writing example and ink swatch
  • Handwritten passage and ink swatch beside an Octopus Fluids Cerberus 30 mL ink bottle and fountain pen
  • Octopus Fluids Cerberus 30 mL sheen fountain pen ink bottle with its illustrated label and black cap
  • Octopus Fluids Cerberus ink bottle displayed on fabric with information about its sheen effect
  • Octopus Fluids Cerberus ink bottle beside a fountain pen writing example and ink swatch
  • Handwritten passage and ink swatch beside an Octopus Fluids Cerberus 30 mL ink bottle and fountain pen
Octopus Fluids Cerberus — 30 mL Sheen Fountain Pen Ink

Octopus Fluids Cerberus — 30 mL Sheen Fountain Pen Ink

$19.50

Named for the guardian of the underworld, Cerberus pairs a deep blue with copper sheen. Its dark ground and warm reflected surface suggest a threshold lit by a low flame—an apt companion for myths, private journals, and stories that begin after dusk.

Ink Character

  • Base color: deep blue
  • Sheen: copper
  • Type: dye-based fountain pen ink
  • Volume: 30 mL
  • Collection: Octopus Fluids Sheen Inks
  • Made in Germany

At the Writing Desk

Sheen appears as a contrasting, reflective surface where the ink gathers. Smooth, low-absorbency paper such as Tomoe River or iroful helps reveal the effect; a broader nib or generous ink flow can make it more pronounced. On absorbent paper, the base color will be more prominent.

Allow extra drying time before turning the page or closing a notebook. These water-soluble inks dry more slowly than conventional writing inks.

Color and sheen vary with paper, nib, ink flow, lighting, and viewing angle. Photographs show the manufacturer’s writing examples.

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