Hi Chong!

No big deal! please don't mention about that buddy, all of us here have a same hobby, and all of us are fish lovers, so we should help each other out!
Anyway, i'm not an expert, and i'm just a 18 year old college student, lol, so please don't call me guru, i'm only sharing my experience and all the ideas i though out and got from you all, budies! and some seniors.
But you surely can call Johnson as a guru! :P he is really a wise guy! And people like Mr Khoo and other!
Enjoy your hobby!

Cheers!
John