Is Bleach episode 128 filler?
Filler Yes, episode 128 of Bleach is filler.
#128
The Nightmare Arrancar! Team Hitsugaya moves out
悪夢のアランカル！日番谷隊出撃
Aired 6 Jun 2007
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.