yes you shold do a serach on this post. but i will tell the way i caught mine, i just took all the lr out, you could try some food in a net you may half to set there a while though
I used an acrylic trap to catch a mean Blue Spot Watchman. I borrowed the trap from the LFS and returned it and the fish promtly. It works great, you just have to be very quick and patient. Check out your LFS and see if they have a trap for sale, or to borrow,HTH
How well does the fish know you. If he is use to regular feeding feed him and then stick the net in and wait . He will come up agin after u put the net in and BANG. gET HIM. iT WORKED FOR ME!