The pH meters at my local (and ONLY) hydro store are well over $100 so I've been saving up for it. I bought one of the cheaper $10 meters from Lowes but it doesn't work, sadly. I will head back to to exchange for a new one that will hopefully work. I just repotted in Fox Farms Ocean Forest/Perlite mixture a day or two ago so I am going to hold off on adding any more nutrients for right now unless their condition continues to decline and the pH isn't the issue. Thank you for all of your advice! I will post more pictures soon.