Fish Tank was the result of a film stock test.
There are three different stocks used in the short, Kodak Vision2 Expression 500T, Kodak Vision3 250D and Fuji Eterna 400T. Admittedly, the tests really weren’t tests because shooting conditions were never consistent. Nonetheless, for interested parties, I do think some of the qualities of each stock are discernible. I would add that there is no color correction, with the exception of the fish/hotdog close-up. Here I bumped up the whites because the shot was slightly underexposed.