Hello all. It has been about 4 years since I have kept a ball python and with my previous one it only ate live so I always moved it into a separate container to eat. My new one that I got on the 10th seems to eat thawed mice fine without any mouse puppetry needed. So I am curious to know if it is ok just to put the thawed mouse in the tank instead of moving him like I did last week. Any issues doing that? Will it make him a bit aggressive?

Also I just want to make sure I fed the right size mouse last week so I will add a pic. He is about 18-20 inches long not sure about the weight though. Thanks everyone