Alright, its a blessing to be able to write my log today...
I had found the culprit that cause SB to trip...(faulty skimmer pump!!1)
I reach home yesterday, and its pitch dark! no Electricity at all....FXXX!!!
Haizzz...
After power is on, everything went back to normal...
Luckily for me, all livestocks seems to be in good shape except for 1 mini nano goby (proof dead, after missing for so long)
Its not the ATO & Pump fault...Its the Skimmer Pump. One of the 2 pumps seem not working, with no bubbles produced. Hence, i took it out to maintance after switching off the pump's power. Puting it back, and try again, no movement...hmmm, thinking its the popeller's problem, i pulled the cable from the top (With power on). The next moment, i see a tiny spot of light from the pump accompanied by instantly, a loud "POP" sound, and then pitch darkness (due to power trip).
LESSON LEARNT - Never finger with equipment underwater with electricity on. If i had placed my hand inside, who knows what will happen....