Missing fish

[new2reef]

I have a 24gallon tank i made a mistake in doing filter maintenance last night. and woke up to my ocellaris in distress(seriously faded and one swimming off canter) realized mistake and corrected it. i went to work today and upon returning i seem to be missing one but the other is doing just fine, my question is would my six line kill and eat my little clown in a matter of 5 hours? if so should i be worried about him killing others in my tank?