#ed_op#DIV#ed_cl#Went on vacation and left my mother in law with mytank and 5 fish died in 4 days. Tank checks out fine, all levels are normal. She said they had some white spots on them floated upside down and died. I have a coral beauty left and 2chromies left. What happened, I only use rodi water and I added a new fish that died about a week earlier. All of my coral, clams and other scavengers appear to be ok. What happened and do I dare add new fish?#ed_op#/DIV#ed_cl#