Start new seed in same space

A question from a fellow grower:

Hello! I’m on my first grow and 2 of the 3 seedlings are now vegging nicely about a week and a half in. (thanks to many of your tips!)
Unfortunately the 3rd is looking a bit sickly and I don’t think there’s hope for her.
Would it be OK to germinate another seed to replace my dying Ling or are my others too far advanced to be in the same grow space?

You should be fine. Go ahead and start another seed. Split the difference when forcing flower.

Yup I agree with Latewood, check it mite even catch:-P with the others…lol