For white leave the paper white or use more water for lighter colours. If you do want a white for highlights, I recommend getting some gouache. It’s basically opaque watercolour so you can also mix it with the watercolours to make them more opaque.
Oh really? I’ve always had black with my other watercolour sets though I haven’t bought a new set in over 8 years! …And come to think of it all of my old watercolours have been horrible cheap ones.
Thanks for the tut! I do use india ink a fair bit, but I’m really prone to leaning in it so I don’t like to use it in big spaces. My main reason for wanting black watercolours is for dulling the other colours down.