I have been working with fluids for a while now and am always trying to improve my technique. Most fluid photographers prefer heavy fluids but I like the ephemeral, water-based inks. They have an ethereal quality that appeals to me even though the outcome can sometimes be soft.
These are done in my 'studio' aka my kitchen. I have a fish tank set up with a series of lights. The inks are water based and therefore I mix them with some cream to make them opaque and have some staying power. The set up of prepping the thickened water, inks and lighting take far longer than the shots!