Yes it's a zebra danio and I suggest returning it because on here people are saying minimum for a danio is a 4 ft. Tank and they also like shoals of 6+
Ok. Thanks. We are back from the shop, and have some old filter inserts to put in, so I have put those in the filter, and have some left over so should I put that in the tank? I have also been given a bottle from the store which they said I should put in the water. The translation of the Chinese is ' universal fish medicine ' and on the side it says to give it to prevent the fish from getting sick ("give before the fish are sick"). Instructions say to put 4 drops in every 10 litres. That would be 44 drops for our tank! Is that recommended or safe, or should we just forget that for now. I'm midway through the water change but doing it very slowly so I don't shock them with a temperature change.