A package for storing photographic colour development concentrates and for filling a tank of a processing apparatus with the colour development concentrates, wherein the package contains at least two different chemicals spatially separated in chambers, characterized in that the package is constructed such that the various chemicals either are brought into contact with one another within the package before the tank is filled with them and/or are brought into contact with one another while the tank is filled with them, is distinguished in that it offers the handling advantage of one-component concentrates without the disadvantages thereof and leads to a better reproducibility of the processing compared with the known multi-component formulations.