Could explain why Coco barks at walls

I had an idea this year to take pictures filled with Christmas colors to hang up as part of our seasonal decorations, and I was going to use this one except for the hard water stains on the leaves. How gross is that? I use the same water to wash my hair and face. We have a water softener, but it is no match for the minerals in the water here. I would not be surprised if a race of fully autonomous creatures are being bred on my scalp by the water I’m using to rinse my shampoo.