Are droopy leaves after dark normal?

I have this little plant, about 3 weeks old, and been 12/12 from seed just like my previous two. But this one for some reason, the leaves start to droop about an hour after dark, and then look fine an hour or two after light comes on.

Was just wondering if this was normal to some strains, because my last 2 didn't do it. Thanks.

Yup, totally normal.

yea of course, sometimes my plants might slighty start drooping an hour b4 lights off cos they no its comming.