Growing really well. Transplanted the peat pellet in to a Solo Cup.
The soil is Pro Mix with some Perlite and Dolomite mixed in.
Watered with just a little nutrients and Cal-Mag
I had a minor catastrophe. One of the mounts to my CFL slipped and the bulb was against the leaf for a brief time. It burnt a couple of leaves. Luckily I noticed and fixed it before there was too much damage. It should recover from it all right.
Looks like calcium to me. Possibly potassium but that usually wont show until flowering. Hard to tell with the current state. But week 4 shows the start of the issue a lot better