I was using the plastic Bottle with the top cut off and inverted, the problem is my clown. I caught him at least 15-20 times.
The best was I set the trap went to wash my hands and came back not 3 minutes later and the clown was in the trap.
LOL.
That is part of the reason I suggested a jar instead of a bottle, then the clown can get out on his own if he goes in, and you may be able to lure the wrasse in over time. Clearly the clown is unconcerned