I would suggest you leave the white cloud in there with the shrimps and then move the danio to the 10g when you get it and it's cycled. It will appreciate the extra space. Keep in mind that white clouds are from locations where the water temperature is cooler than where the danio comes from as well, and can become ill more easily at high temps.
White clouds may not be appropriate for either set-up, as they are not really compatible with the danios and they need to be in decent-size groups. Considering taking the shrimp and the danio and moving them to the 10g, then trading in the minnow in exchange for something that will do well in a 5.5g (a betta or dwarf puffers come to mind).