If you know you want to catch a fish ahead of time begin placing the food in a net at feeding time. I flush my frozen mysis in a small net and out of laziness began just putting the net in the tank (bent the handle so it hangs on the centre brace) Now my fish JUMP into the net each day
and always, always, always invest the $17.99 installing a G.F.C.I. One of my clients just dropped a light in the tank while she was moving some corals
and she's glad I did.