With a live hopper, things might get messy if you leave the water bowl in- I can see why you asked- hoppers can be rather active, so yes, it might be a good idea to remove the water bowl just for the time being so it's not accidentally spilled. I would remove it in the morning actually- so you aren't reaching in & disturbing your BP right before you try to feed him that night. He'll be fine for the day without water, & this is just because he's already a bit stressed & needing to eat- we want to make sure he does.If he eats, you can put the bowl back in right after.
I know many on here talk often about weighing their snakes, but just focus on him eating regularly for you for the time being. Young snakes that are eating young prey don't really gain weight very fast anyway, & it's best not to risk disturbing his appetite by handling to weigh. We've all made "rookie mistakes"- don't beat yourself up- we're here to help you avoid all that we know about -from "experience", lol.![]()