1st Grow RQS Royal Gorilla Automatic

Morning all Not the best weeks shes gradually getting more yellow day by day, there has been some growth but not alot. Still not got to the bottom of it, she has only been fed 3 times with 0.5ml of bio grow. Tried cal mag 3 days ago with no real difference in yellowing. Flushed yesterday and defoliated most of the bigger yellow fan leaves. Hopefully see some new growth or a slow down of yellowing in the next few days. Feel like giving up with her but will carry on and see how it turns out🤞🏻