Penlux | Fountain Pen | Reserva | Blue Tears

The “blue tears” in Matsu, Taiwan are actually a type of microorganism in the water known as Noctiluca Scintillans. During the day it presents as a reddish rusty tint in the water – which is why in some places it’s called the Red Tide. The blue glow happens in the dark when the algae are agitated, usually by the waves or other movement in the water. This is actually a reaction by the algae to try and escape its predators.