Today, I have performed a risky treatment. I took him to a medicine bath (seachem paraguard) for an hour as I want to force him to excrete. He is under monitoring now.
Today, when I back from work, I saw he is more active than before. He start moving around and even beat my 8" indo up occasionally. I hope he really get better soon
Thanks for all the advices, today he start eating again(almost 5 goldfish). He rare stay at the surface and being much aggressive. My 8" indo has been beaten up.....
so dropping the temp or medicine bath do the trick? I have huge dat that die after a purchase. My bad. I tried raise the temp n add salt. But can't save him. Not sure nxtime i have to raise the temp or lower.
Acclimating LARGE Fish :
The key to temprature change in tropical fish is that they never take a sudden DROP in temprature. It is safe to acclimate a fish into a tank that is much warmer than the tank it is coming from. Tropical fish can often take a jump of 3-10 degrees with no problem, however a drop in temprature over 2-3 degrees can prove lethal.
However i have seen expert putting a bag of ice beside my arowana bag during transfer. confuse.