Not that we ever like to do it, but what does everyone uses to net large fish? My regular aquarium nets are now too small for some of my fish, and they ain't gonna stop growing.
Draining the tank is huge too, I tend to have to drain my bigger tanks otherwise too much real estate to cover!!!
I have also seen people use tank dividers to cut the tank in 1/2 or 1/4 to make it easier to catch the fish (I used a large piece of plexi-glass) you just keep squeezing the fish to one side of the tank so there is nowhere to go except into the net (be careful of fish with teeth they will bite TRUST ME.)
I use the really large fishing nets that are rubber. Amazing nets for catching fish.