I bought a Ctenanthe a while back and it has been good ever since. I keep it in a medium bright spot, no direct sunlight, and always a pretty stable temperature.
Recently I have seen some brown leaves, and leaves looking pale as well. I cut away the completely rotten leaves, but after a week, other leaves are dying as well. On the other hand, it is sprouting a lot of new leaves as well. That's why I'm a bit confused about what's happening.
I attached some pictures to help diagnose the problem. I am wondering what I should do to fix the plant.
Click on the pictures for closer view.