that trap is a great idea, next time I move mine (if ever) I'll have try something like it. They seem to love the 20 gallon, though.
You know- if you were a zookeeper and had as much success breeding a notoriously difficult animal whose habitat was being destroyed- you'd gain a measure of fame and respect, lol. Seriously, from an ecological and husbandry point of view... it's almost unprecedented.
Okay, we need more tank-bred otos... put on that mood music and dim the lights!