I love INK!
In my art supply collections I have two sets of creative tools created with a liquid watercolour-type ink.
Mermaid Markers and INKredible inks both have dye-based inks with different formulas.
The main difference is that Mermaid Markers are more water-reactive than INKredible inks. INKredible inks are easier to layer
In this chart I swatched out Mermaid Markers, the new Inkredible inks and the OG Inkredible inks so you can see the differences in the colours, and it gives you an excuse to get all three sets!
Mermaid Markers: click
New INKredible inks ( in the new plastic nozzle bottles): click
OG Inkredible inks ( scented in glass dropper bottles): click
New INKredible INK video: click