Help for deciding best Instant Messenger specially for FB

[prateek091]

Hi friends, I'm new to this forum and want your advice. After a very long googling I'm tired of searching a good Instant messenger pls help, my requirements are -

Low RAM eater (Very important for me)
Multi fb account support (Not Very important)
Don't have bugs like not showing friends online, sending message twice etc

I have used Nimbuzz (30MB), IM+ (40MB), Ebuddy (30MB) & IMO/Trillian(It's also taking around 30MB RAM) also. pls suggest some good name

 

[chanchan05]

I use the official Facebook Messenger app. On checking it just uses 18mb.

 

[prateek091]

I use the official Facebook Messenger app. On checking it just uses 18mb.

Yes I also use it sometimes but when someone message me it doesn't show notification always.