I'm quite sure that he mentions "short" series (aka, not bleach), but if you have time for bleach (200+ episodes, but less if you skip the fillers, and still on-going) your brother will like that. And if you have time, maybe try Hunter x Hunter (roughly 80-90 episodes including all the ovas which are continuation from the tv series). Marchen Awakens Romance may also be good but that's also pretty long, about the same as HxH. Prince of Tennis (another long series) is like Dragon Ball in tennis form, he might like that.
Some of the short ones I might be able to suggest are:
Mobile Suit Gundam 08th MS Team (you might want to check it first, just to make sure)
Final Fantasy VII Advent Children (it's a movie that's made from CG, it's action-packed)
Black Cat (he'll probably like, but maybe check appropriateness to make sure)
There are probably more, but nothing comes to mind atm.