I have used the inverted cola bottle trick successfully 3 times... its a waiting game though. i would imagine the trap with the large mouth and the door would work very well. i almost instantly get the fish to go into the first part of the soda bottle, it takes much longer for them to go through the hole. if i could have just dropped a door on it, it would be easy. especially because i believe the acrylic box is basically invisible to the fish.
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