I agree with the above answers your plants look to have "nutrient lockout" which means the plants are not taking up feed as needed.
I would do a plane ph adjusted water flush for the next 7-10 day's then start to introduce feed back into the watering regime 👍
I'll keep dropping in to see how you are doing my friend and thank you for growing our Strawberry Amnesia this round 👊
All the best ✌️
Mark..
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