I don't know if this is your first hatch or not or what kind of science you're doing 😆 but if it is your first hatch and you just have a plain hard plastic bottom you are debating, I can tell you it's painful. Use cushion liners that won't absorb too much humidity or funk but will provide...
I think I've had a couple that definitely took longer to get their bearings straight from being kicked around so much on my first hatch with the plastic bottom. I really like those rubber grid pattern shelf liners (I use two layers). They definitely help a lot with that. The first time, without...