Now for the tablet: You are absolutely nutrient-free, which is quite deliberately to stimulate the rooting of the seedlings at the beginning. Only - according to my bitter experience stunted the plants after the first cotyledons when they receive no nutrients. This means although it should be enough space for plant and root ball must be repotted very quickly, the coco tablet must be set in humus, so that the plant can continue to grow.
This is again very dependent on the seed size. For large seeds (cucumber, fennel), it is not a problem as the plants has enough nutrients from its seeds and it sets it intuitively at the right time in a larger pot. In medium-sized seeds (tomatoes, broccoli, peppers) are to me quite a few received, the larger I had implemented on time, with the smaller I've been waiting for the first real leaves, unfortunately these plants are previously grown and dead yellow.
For really small seeds (celery) you have no chance: after two weeks I admired the first tiny seedlings, unfortunately it did not grow further and after two more weeks they were dead again I doubt that you have a chance, even if the. sets tablet immediately in humus. Probably you have to fertilize here as soon as the cotyledons are there.
Conclusion: Through these tablets I've learned something about the early youth of vegetables, and I will work with other cultivations with small paper pots that will prepare, depending on seed size with varying degrees layer of potting soil to compost directly. The remaining coconut tablets I will crumble and mix the potting soil.