germination in a propagator

So, you have sown 5 or 6 seeds in a pot and placed it in a heated propagator. Two of the seeds germinate and become leggy ...in a matter of days they go from nothing to leggy. The other seeds haven't germinated. Do you remove the pot from the propagator and risk the other seeds not germinating? Or do you keep the pot in the propagator and run the sure fire risk that those that have sprouted will become increasingly leggy?

I remove my seeds from the propagator as soon as some of them show their heads. I find that the remaining seeds are not very far behind.

they are tomatoes. But I also have auberines in there which have not germinated. If I were to take the lid off the aubergines would not germinate so it's either take the pots of germinated seedlings out or not, really.

As you have sown the seeds in separate pots, you can take out the ones that have germinated and leave the others in. As said you should take them out or take the lid off as soon as they have germinated. In fast this is not a should, it's a must.

Once germinated seedlings do not need as much heat. Depending how leggy they've got you may be able to rescue them.

Hopefully they are now out, get them somewhere light and place some aluminium foil so that the seedlings are between the foil and the window. Give them a few days to hopefully strengthen up and then repot them right up to their leaves - but be prepared to resow. I'm inferring that they've been in there a couple of days, as you say that in a matter of days they go from nothing to leggy. That's not good news.

Not a problem.

Grow them on, when you take out the side shoots, pop them in a pot of compost. They root dead easily!