Yeah, for my large common plec, I did a sort of drip method, except I added 3 cups of water every 10 minutes...
The only reason I did this though was because I was afraid of it, lol. It was huge!
I didn't really have a net big enough for the whole fish to fit in so...lol, I had to use two nets...I teel ya, it was my most tramatic time putting a fish into a tank. It was huge and it flopped around, so if it fell out of the net, I sure as heck wouldn't be picking it up, so then what?
I think I'm done with large catfish......for now, lol.