Yoooyooyoo, Wekk 13 got some ups and downs. I ran out of calmag starting the grow and kinda hoped i don't need it. If you have strong LED lights and like to have the light close to the canopy like me i would HIGHLY recommend you using calmag. You can see i got magnesium chlorosis pretty early on and the Plagron basic fertilizer did not provide enough with the low-ish dose i gave (1,2ml/l). I like to grow autos and you can't feed that more than that, it feels wrong to do it with photos haha BUT i did. 2ml/L EACH. and 0,5 calmag which seems enough. But me wanting to try out foliar spray (brilliant idea), because i already could see calcium spots on the leaves. kinda got me some slight toxicity (you can see the tips if you look closely) But she is gucci on calmag i can tell haha. Got a nice green color again and looks very healthy right now. she is drinking about 1-2L a day depends on the weather. DLI was around 35. She will look so good in a few weeks, i can't wait. Cheers (: