Yep they’re in a separate tank with other new geophagus sveni juvies for at least the next month to watch for any sort of disease. The discus are in their own quarantine tank for the next month minimum as well.Be careful with the cardinals. Watch them very closely for any signs of disease. I've always had problems with them being very delicate shippers. Some in the last group of 100 I ordered came down with a bacterial infection & it spread to the whole group before I could catch it - its nearly impossible to see an issue like that in a school of 100 fish under an inch that are identically colored. Quarantine is necessary for them