Phosphorous Deficiency after Transplanting

Okay so coco is not soil. Nor is it to be watered like soil. I grow in coco. Your issue is ph. When growing in coco you never need to transplant. Start in final Potter. It is hydro growing in a potter or bag. Your issue is the ph is wrong in new coco. You can not over water coco. Coco is heavy irrigation. So your not treating your coco right. It's not soil. First thing you need to do is go flush all your coco plants till run off ph is 5.8. Then apply new feed with a cal mag. Your ph is the issue for sure. By doing this your plants will start to thrive. I soak, test, and feed every other day on my coco grows. You may have to daily till your ph test low right when you start. You can reuse coco 2 or 3 times. I am not guessing anything. I know exactly what your issue is. So any soil answers you get are dead wrong. Coco is not soil. Sadly not many know how to properly use it right. They do exactly like you are and miss out on a ton of potential. Happy to help you get on the right track. Like I said I am a highly experienced coco grower. Glad to give you the right information. 👍