What type is effective against slowbro?

Slowbro is a Water/Psychic-type Pokémon, making it weak against Electric and Bug-type moves. Electric-type attacks exploit its Water typing, while Bug-type moves take advantage of its Psychic typing. Additionally, Dark and Ghost-type moves can also be effective due to Slowbro's Psychic type. Overall, focusing on Electric or Bug-type moves will yield the best results against Slowbro.