Anderillium

Anderillium is a small fountain pen ink maker that handcrafts all of its fountain pen inks in its own lab near Tampa, Florida. Their colors are custom-formulated by an in-house chemist and grouped into nature-inspired series—Cephalopod (squids and octopus), Avian (birds), Lepidopteran (moths and butterflies), and Ichthyoformes (fish)—so each shade feels like a tiny field guide entry brought to life in your notebook.

What really sets Anderillium apart is its eco-conscious, vegan approach. The inks and even the packaging are made without animal products, and the company deliberately minimizes plastics and uses environmentally friendly materials wherever possible, reflecting a strong commitment to protecting oceans and wildlife.

In practice, these inks are well-behaved, fountain-pen-friendly formulas that clean up easily and come in charming, wide-mouth glass “jam jar” bottles that make filling your pens a pleasure.