The delight about the first seedlings can wear off very quickly, when the plants suddenly start to fall over without any noticeable reason. Mostly that happens either because the seeds where planted too narrow and now the roots interfere and hinder each other, or it happens because of warmth, moist soil and high humidity – all the conditions that were actually ideal for propagation at first. To avoid the problem simply keep the soil a bit more dry than before, make sure the pot gets some air now and then and / or use a special remedy to strengthen the roots.
Plants are only being repotted after the old pot is completely rooted and has become too small. You will notice that when