This image was my second go at using acrylic ink. I did a seahorse first, learned a few things about how the ink moved, and then did this fish. I used a wet on wet technique where I first filled the sections with a layer of water and then dropped the ink in and let it spread.
I used 300gsm watercolour paper so that it wouldn't warp so much. I really liked the way the acrylic ink spread through this piece, though there are some small tide lines where it washed back on itself. Before it completely dried, I added some small dots for texture.