Gose with Lacto in Primary

Hey, I'm brewing a Gose and am going to pitch my lacto starter into the wort when it gets down to about 100F. Planning to let the lacto ferment for a couple of days, then pitch a hefewiezen starter. I have a couple of questions about this:

1. Do I aerate the wort for the lacto?
2. If I don't aerate for the lacto, do I aerate in a couple of days when I add the hefeweizen yeast?
3. Any suggestions on how to keep the wort around 100F for a couple of days?

I appreciate any help. Thanks!

So what I did was cool the wort to 100F, then pitched the lacto starter without aerating. I've put the carboy in a cooler full of hot water to keep temperature, and am changing out water a couple times a day. Still wondering if I should aerate when I'm ready to pitch the yeast starter. Thanks!