Overall, everything seems to be going very well at the moment. The plants are growing faster than ever and the space on the sides is getting cramped. We still have plenty of space for them to stretch, but the upcoming week will probably be the last one in veg before we'll switch to 12/12. The roots of the plants already reached the bottom of their fabric pots.
Topping:
We decided to top the three largest plants (2x PCK, 1x Gelato). This was only done because we wanted the smaller gelato (top left) to catch up a little. I'm curious how that will work out.
If all the plants had been the same size, we probably wouldn't have done it, because the space at the sides is already tight.
Lamp distance:
As the plants grew, we forgot to adjust the lamp distance until the distance was slightly below 30 cm. The upper leafs are currently looking a little stressed as a result, but it is not too bad. Right now the distance to the lamp is 50cm.
Fungus Gnats:
We added some sf-nematodes to the soil to get rid of fungus gnats. It is unclear where the gnats came from and it could be completely unrelated to the grow. However, we gave the nematodes to all plants so it does not become a bigger problem.