HELP...Damsel fish acting strange

[SCUBA_STEVE]

I have a yellowtailed blue Damsel fish that is acting strange tonight. It seems to be gasping for air and swimming very eeratically (sideways, darting everywhere) which is odd for this fish. All my parmeters are good in the tank and all the other fish are doing good as well. Does anyone have any suggestions as to what could be happening? Also I have a QT tank should I look at trying to catch it and moving it over to the QT for a bit? Any help would be appreciated.
Thanks,
Steve