Originally Posted by Fat TM13IceBeam
This is weird.
According to Bulbapedia, Hippopotas swarms are up to a max level of 44.
I caught a LV 55 one 2 days ago from Route 4. First ever swarm in my game, heh. ._.
Never trust Bulbapedia/Serebii on things that aren't really worth investigating for these months.... They have lots of false information on those subjects