Store I work at isn't anywhere near you (we're in the U.S.) but we've got Galaxies in so I can add a couple thoughts from personal experience. (We've had the current shoal of 6 in for about a month.)
They are weird about their water--if they survive the acclimation and the following 24 hours, they do fine and thrive. But if the acclimation is too stressful, they'll just keel right over with no time to catch or cure it. We lost 3 of the initial 6 overnight *bam*, replaced those three and lost one of those overnight, then the last replacement who came in by himself did just fine and brought the shoal back up to 6 total.
Our Ph is 6.7, temp 78, and the water has a little Indian almond leaf added to it to soften it and for the tannins.
They won't take flake food of any kind, and don't seem interested in freeze-dried. However, ours are taking (and thriving on) frozen foods. But the food has to be SMALL and light and stay suspended in the water column. The only frozen foods we've gotten them to take are frozen daphnia, and frozen cyclops--they won't even touch baby brine shrimp, mysis shrimp, bloodworms, or adult brine shrimp--but they are taking those two prepared foods very well.
They've even been happy enough to show some courtship behaviour and the "twirling" that many danios, tetras, and rasboras do when contemplating a spawn. Haven't seen them actually spawning yet, nor any sign of offspring, but it's a huge change in attitude from the initial, scared, thin, shy, always-hiding fish that first came to us.