Ideas on Catching a fish

[marcingo]

Anyone have any ideas on how to make a fish trap of some sort. I have a half inch fish I would like to catch to put into another tank. I do not want to take the rock out of the tank unless I have to (last resort) since I did it a week ago and it was still tough to catch another fish which was 5 inches long. Anyway if any one has any ideas please let me know. Would a bottle work? Maybe get the fish to swim into it. Everything else in the tank would be too big to fit in the bottle. Anyway thanks for the ideas.