This was my very first piece! So I used Parker fountain pen ink for the black fish. Then the coloured fish I used diluted screen printing paint. My brother Andrew caught the Queen Snapper and saved it for me. I keep it in my freezer for over 5 months now, and am still printing with her. Bless her soul! I'm thinking that I need a 'thickener' for the ink. It was a bit runny. I am just amazed at the detailing of the scales and fins! I've done more pillows! My other brother Alan also has a charter fishing boat and he wanted them on board!