Here is the weekly manga sales ranking top 30 for Apr 13th - 19th.

*1, 325,861 *,862,068 Fullmetal Alchemist vol.22
*2, 164,679 *,164,679 Hayate The Combat Butler! vol.19
*3, 120,212 *,120,212 Life vol.20
*4, 118,010 *,118,010 Kekkaishi vol.24
*5, *99,384 *,*99,384 Ace of Diamond vol.15
*6, *76,830 *,*76,830 History's Strongest Disciple Kenichi vol.33
*7, *62,171 *,743,979 Bleach vol.38
*8, *56,096 *,518,926 Detective Conan vol.64
*9, *55,878 *,*55,878 Area no Kishi vol.15
10, *54,922 *,*55,922 Capeta vol.19

11, *48,435 *,*48,435 Ocha ni Gosu. vol.8
12, *47,831 *,*47,831 Ryuuroden: Chuugen Ryouranhen vol.5
13, *45,241 *,484,705 Katekyo Hitman Reborn! vol.24
14, *44,713 *,*44,713 The World God Only Knows vol.4
15, *43,211 *,131,733 Slam Dunk 10 Days After Complete Edition
16, *42,738 *,429,735 Gintama vol.28
17, *41,025 *,*77,289 7Seeds vol.15
18, *40,067 *,*40,106 Gokuraku Seishun Hockey Club vol.12
19, *39,699 *,*39,699 Chibi Maruko-chan vol.16
20, *38,294 *,*38,294 Junai Tokkou Taichou vol.12

21, *37,372 *,*37,372 Gambling Emperor Legend Zero vol.8
22, *36,584 *,*36,584 Kimi no Iru Machi vol.4
23, *36,293 *,*36,293 Shiawase Kissa Sanchoume vol.13
24, *34,519 *,*34,519 Pumpkin Scissors vol.11
25, *33,737 *,595,360 Saint Young Men vol.3
26, *33,088 *,*33,088 Jormungand vol.6
27, *32,925 *,*32,925 Code:Breaker vol.4
28, *32,709 *,*32,709 Beshari Gurashi vol.8
29, *32,250 *,*32,250 Saijou no Meii vol.5
30, *29,322 1,351,356 NANA vol.21

Last week's ranking: Japan's Weekly Manga Ranking For Apr 6 - 12
Source: Oricon Comic Ranking

Additional news:
"Majin Tantei Nougami Neuro" ended on April 20th. A special one-shot episode will be published in Jump Square magazine on June 4th.

Source: Natalie

Hikawa Hekiru announced in his blog that "Pani Poni" will end by episode 159. He stressed it continues as a new series and asked the fans not to stop reading it.

Source: Hikawa Hekiru's blog