I have a mature Anthurium which recently had her largest leaf turn yellow. I put her on a grow light because I know she wasn’t getting enough sun. But now I’m noticing another leaf is turning yellow. I pulled her from her pot and she’s not root bound, but I thought it might be a good idea to use a different potting soil for her; what is the best kind of potting soil to use for my plant? Also, any other ideas on why she’s having leaves turn yellow? I don’t think it’s a pest problem because I can’t see anything. I also use filtered water. and I only water her when the top of the soil is dry so she is somewhere between dry and moist. TIA for any info regarding this lovely girl. 😊💚🪴

