I only have 8 at the moment, but I don't really handle them anymore aside from cleanings because it causes too many stress issues. When I leave them be save for changing water, cleaning tubs and occasionally just checking on them to check , they eat without hesitation every week. Even my problem feeder eats better when I leave him alone. He was the one that made me realize that handling often doesn't benefit them in any way. It makes them a better "pet" maybe, because they are calmer with occasional handling, but even without they are not a species that gets too difficult to work with or anything. Granted, each animal is different. My male mojo has always tried to get me when I go anywhere near his tub, but that's just how he is. *shrug*