I used the plastic bin that you can see floating in his old tank which is now my outdoor tank. I had done this twice before I he was always very calm and I just left his water all the way down and scooped him up in a bin. I covered him over with one hand and moved into the other tank.
But this time he struggled like crazy and jumped out of bin with only 5 in of water in the tank.
He seems to be recovering and I'll have the 75 set up in one more day and he will be very happy to be in it.
I think to move him this time I am going to lay a towel in the tank and let him swim over it and then pick up both ends and scoop him up just like a cat.
He actually got most of his scratches from the edge of the plastic bin.