Please help. About to give up.

[cdemoss01]

I’m sorry I was out for a week. I was away from my house. I came back to a dead clownfish on the floor and a coral beauty underneath the rocks seems to be struggling breathing fast no discoloration no visible illness. The algae has started to die off. Just did a 5 gallon water change and will do another tomorrow. Corals are all fine the other three fish seem to be really healthy and active accept for the coral beauty. Not sure what do to in this situation. This tank is 5 years old and all I’ve had is problems with it don’t know why it can’t just go right. Hopefully my coral beauty will recover she is swimming just on the sand. Hopefully she’ll recover.