remember the fish and live stock probably traveled before you got them...and i am willing to guess it was longer than 5 hours...now this is where some will chime in and say they add pure o2 to the bags before shipping....they should make the trip that long without any added help...and someone told me that corals are hardier than we think a guy at the local fish club told a "story" that he actually let a coral dry but mistake and it came back health, just my 2 cent.....