Why are my Anthurium magnificum leaves turning dark?
Oh, my friend, it looks like your plant might be getting a little too much sun. Don't you think it'd be best to move it somewhere it gets less light? If the leaves are damaged, I would gently trim them off with sterile scissors. This will help you avoid other problems like pests and keep your plant happy and healthy! It would be best to put it in direct sunlight for about 3-4 hours daily, my friend.
This plant usually doesn't like it too dry, so keeping the humidity around 60-80% is essential. If it's too low, the leaves can start to look a little sad. I usually just cut off the turning dark part and check the leaves for pests. Pests accompany this problem, so it's good to be safe! If you do need to use anything, use organic pesticides.