Sadly no pictures, but I saw this huge Philodendron at a florist that was in the process of moving to another location (we were walking by and their plants caught my eye). No idea what it was, but it reminds me of your Philodendron that gets the dark red leaves on it? It was huge! I so wanted to go in and look around, but they were closed. I need to see where they moved to, maybe they have a baby version.