This was an interesting week. We got a little scared cause the same issue we had last grow, seemed to appear here aswell: the yellowing inbetween the leafs veins. Last grow this kept getting worse untill all those leafs had to be removed, and the plants looked very stressed for a long time. We discussed many diffrent soil and nutrients issues that this would have caused, but we were not convinced by any of them.
But this grow was different. We had not fed these plants yet, and they were chilling in a normal potting soil, which would definitely not cause them any weird burns, so the issue must be something else. We're thinking now that it might be the RH, as it became very low sometimes, around 20%, with an temperature of 30 degrees. We bought a humidifier, which bumped up the RH in the propagator to between 55-80%, which is an incredible increase. We hope this change is something the plants enjoy, and makes them healthy and less stressed. Updates next week!