Hi guys, I repotted this leopard lily about 3 months ago. Ever since, the leaves have become crinkly and drooping. It gets bright indirect light and watered enough. I believe the culprit is the PH being too high (on my meter, it reads at an 8 alkalinity, but dieffenbachias do best closer to a 6) Are these characteristics accurate for PH being off? And if so, what is the quickest way I can make my soil more acidic? Thanks!