Kingdom Note Uca Arcuata aka Fiddler Crab Green is from the Crustacean collection, manufactured by Sailor and sold exclusively in the Kingdom Note Tokyo store. To me this ink isn’t green at all, but somewhere between yellow and brown, more of a gold.
Uca Arcuata is a golden color, not quite yellow but not quite brown either.
In large swabs you can see the shading and a little bit of the sheen.
Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.
Dry time: 20 seconds
Water resistance: Low
Show through: Medium
On Staples 24 lb copy paper there was a bit of bleeding and feathering in the flex nib as well as some feathering in the other nib sizes.
I used a Pelikan M400 White Tortoise with a medium nib on Tomoe River paper. The ink had a wet flow.
Overall, I’m a sucker for the golden-yellow-brown inks, and this one is no exception. I love the color and flow. I would suggest Robert Oster African Gold as a good alternative.
Disclaimer: A sample of this ink was provided by a reader for the purpose of this review. All photos and opinions are my own. This page does contain not affiliate links, and this post is not sponsored in any way.