Sweet ZZ Auto - first ever grow

It's been around 10days since last update. Really happy with the progress. One of the plants started to grow abit weird but new growth seems to be somewhat okay, so I'll just let her do her thing. Looks like all are growing really quick. Although I've noticed the pale patches on the leaves. I have looked and found it may be a magnesium issue, or both cal+mag? I have been doing the ph at around 6.0-6.3 to guarantee to nitrogen availability as I have read in a few places that the uptake is above 5.9ph Think next feed will be below 6.0 If anything I've wrote is wrong I will greatly appreciate anyone putting me right. Thanks Hope you all had a good Christmas 🎄 All the best for the new year