IME, draining the tank is still the quickest, easiest, and least stressful way. especially if you only have a 75g tank. I did this again just recently trying to catch a hippo tang.
Just used a lenght of 1" spaflex, and 3-4 sturdy rubbermaid containers. sucked the tank dry in about 10minutes or less, reached in grabbed the fish, threw him in a bucket, hooked that spa flex up to a mag7, and filled the tank back up. No moving rock, chasing with a net, hours of standing by the tank, no midnight ambushes.
All the other fish just hang out in the low spots that still have a little water, no issues. Corals can handle being out of water for a long time.