is one piece episode 550 filler?

While Hody Jones and his crew are on their way to Gyonchorde Plaza, the other members of the New Fish-Man Pirates are causing trouble over Fish-Man Island. Daruma is chewing through the Candy Factory with his jaws and states it causes his fangs to ache.

He tells his crew that he's heading towards the plaza and tells them to meet him their and says the citizens have no more hope while digging away towards the plaza. One citizen says only the princes can defeat the crew since they have four shark fish-men, a squid and a octopus merman in the crew.