16.
It's a fun episode I think. There's an island of special pokemon that is forbidden for people to trespass on and capture mons on. It's a wildlife perserve, and all the Pokemon that live on it have been dyed pink because of the unusual fruit they eat growing on the isle. It reminds me of how flamingos start of white and grey, innocuous colors, but change colors into pinks, reds, oranges from feasting on shrimp and algea.