As far as I know this is a McColley’s Finale. It looked the same amount of unwell when I bought it. I removed a bad off leaf, put some worm castings on the soil and bottom watered it with a water/superthrive mix. It’s not looking any better or worse imo, but it’s growing a new leaf. The soil isn’t retaining water, it’s not root bound and I see not pests. What should I do to perk this little one up? Or should I leave it be? Surely they don’t always look like this.