Allright... starting today (20-12-2021) as day 1. 9 ladies in a whole new setup (see germination week). All looking great, curious about the performance of this setup and the lights in particular. Let's have some fun.
21-12-2021: First 12 hours of light was on the ladies @600Watt. Measured some PAR values to calculate current DLI. Average DLI: 61.7 mol/m2d, Peak DLI: 84.9 mol/m2d, PAR: Average: 1404, Peak: 1989 So it could be a little less😆 Will raise CO2 level next week when first nodes are there. I guess I start with 1000 ppm and raise it with 100 every week.
23-12-2021: Great... all still alive.. Put power down on the lights a bit because a DLI of 50 is a bit on the high side for seedlings I believe. Noticed a huge drop of PH so added some fresh water and will reevaluate tonight. My guess is that the buckets are finally full with water and so the older water is flushing through now. If I am right I should not see a PH drop tonight. If I am not right I will raise the irrigation frequency.
26-12-2021: The PH problem is solved... my PH- bottle seal was leaking😡. 7 days old now.... I believe they look fine. Raised the power of the lights again to see how temperature will hold. Total power now is 950W (just for a few hours to monitor the temperature).