Riddle
This is my (what I assume to be) heartleaf philodendron, I've had him for about a year maybe two. Recently I've noticed he's grown a yellow leaf and has a few brown roots. I looked online and all the answers I got were overwatering, but, he's been growing in water since I've got him and he's been great till now. Any advice anyone could offer on what to do would be greatly appreciated.
