Zebra danios are classified as sub-tropical. Their natural enviroment includes mountain streams the have to deal with spring snow melts, therfore they can stand cool water. The temp range for ZD's is 18-24c / 64-75f.MNfishy said:Ya its broken, my temp went from 78 to 68 over night, shold i try to get a new one asap? or can my 3 xebra danios survive a day at room temp?
**EDIT** BTW this will be my 7th day in a row going to the pet store