Blunt and to the point: How do you catch a fish that doesn't want to be caught?
I'm after a "wild type" common in our pond. It's about 5 to 7 inches, dark brown, and is starting to resemble a catfish more than a goldfish. After I move, this one will be residing in a cushy 20 gallon while my two fancies will be split between two 10 gallons (I know, I know, they've been together this whole time in a 10 gallon and they're best buds, but this is the best route for them)
I have a spare 10 gallon that isn't filled right now (I have 3, two are occupied, one by the aforementioned goldies, and the other by guppies) so I can put him in there and get him acclimated to fresh water that isn't from a canal, and lower the water halfway for The Move
OR
I can hope that he lives another 2 months in the pond, survive a 2 hour trip in a plastic baggie of his pond water, then get him into a 20 gallon of fresh water and hope he survives.
Unless someone has any other ideas?