Hiya. Having my first foray into growing tomatoes, and seeding indoors to get a head start. Seeded with a seed raising soil mix.... and a few of the seedlings have either grey mold or blight??(unsure, trying to get a diagnosis) pictures attached. The leaves are yellowing with large brown spots.

I've also seeded them into quite shallow seeding pots(maybe 2 inches deep) and was wondering if I should be transplanting to give them room to grow already they are 2-3inches varying by stem size.

Any help much appreciated.