Your plants look quite healthy ๐ช๐ฝ๐๐๐ผ
I too had a couple of leaf tips curl, but I didn't adjust any nutes etc as 99% of my leaves were happy healthy and a good colour. I never removed the 2 curling leaves and up until recently when I deflated, those 2 leaves were still going strong. As I am a newbie, I cant offer you any real advise. However when you posted your diary week, you should have been given the option to ask a grow question. This would be answered by the right relevant growers.
Good ๐ on your grow
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