I can't believe it.. the moment I came home, some weird smell were all around my house.. it smelled like the dead thing.. and as I run out the balcony.. I can see a few fishes in my pond is already dead.. it seems like I'm quite busy the whole week that I have no time to change the water in the pond.. and it turns out that the water pump is really problematic today that it sucks out the water out of the pond. How it happened, I really don;t know.. may be because of the dirty water and leaking water pump.. All my grown up fishes are gone.. all dead! Arrrggghhhhh! So sad!