Sorry for your loss. Got get some 7 gallon containers, and a few bag of happy frog soil. @ tag my name when you do. Like this @Trisham70.
Order these off Amazon.
https://www.amazon.com/dp/B00D93NIFY?ref=ppx_pop_mob_ap_share
https://www.amazon.com/dp/B000BNKWZY?ref=ppx_pop_mob_ap_share
Stop watering them. Let them dry out for transfer. The miracle grow is probably causing the leaves discoloration.
In the meantime, read this.