Should i use a humidity dome on my seedling?

I have 1 autoflower seedling. She sprouted last week, she is about 4 days old. She is not even a inch tall yet. She is showing her 1st set of leaves. I was wanting to know if I should keep a humidity dome on here for alittle while. The dome is just a clear plastic cup. I have her under a 26w cfl. I am asking because my humidity in my grow box is very low. It stays at around 25%. I was thinking a humidity dome would keep high even till the plant gets started. so any ideas or comments?

The plant does not need that dome. It really just suffocates it. In fact, you want a little breeze on the plant, wiggling the stem a bit, to make it stronger.

I'd just leave it off. With the light you have, you need to keep it as close to that baby as possible. And the cup is going to block a lot of the lumens available. Just spray her with water once in a while.

Here is the seedling in question. She is 4 days old.