With the last heat wave, I had an answer to one of my questions, clearly my chiller is not doing the trick. I have water temperatures that went up to 27°, which is way too much, the plants deprived of oxygen, started to declare several deficiencies due to an assimilation slowed by the lack of oxygen. It is then that a nasty fungus came to say bijour, it is me MR pythium! It was necessary to act, at the risk of having to restart the culture. So I applied hydrogen peroxide and ROOT ROT X, and both products are doing harm to this nasty pythium, things are now back to normal. On the other hand, the plants had a decreased growth for 10 to 15 days, so I'm going to extend my growth for 10 to 20 days, that is to say 1 or 2 soups, I'll choose according to the root development of the plants. Before going to flowering, I have to catch up this delay in order to make a nice crop.