My Plant Has Taken A Turn For The Worst

Hi All,
My plant in the last week has taken a turn for the worst about 4 days after transplanting into a larger pot using biomizz allmix soil. My top leaves are all curling upwards and the top leaves are slowly going yellow. I am currently flushing with just water asd I think it might be the nutrients in the soil have shocked it a little but any advice would help. My temputure is always between 80 and 85. Please see images

I think u need nutes and make sure ur runoff PH is between 6&7. It looks like a K deficiency because of the shiny leaves, twisting of leaves, and where the yellowing is occuring (mostly on the outer edges of leaves).