What i mean "play" is using booster or liquid adjuster which will change the pH in a very very short period of time. And this is quite high risk.

Ok, what you can do now, is
1) Stop using any blackwater or pH down liquid
2) Get some better quality bio rings from LFS and a bottle of bacteria booster (300ml to 500ml enough)
3) Put those bio rings in 2nd and 3rd layer from top. (Top 1st - wool/sponge, 2nd&3rd - bio rings, 4th - coral chips/lava rocks, 5th - carbon)
4) Then change water, put anti chlorine following the ratio
5) Add in Bacteria according to the instruction for new tank cycle

Note : Lower down the water level and sink your outlet into the water to reduce impact of water hitting the surface.

Then you sit back and observe the changes in your aro. No need bother the temp if the average room temp is around 30'C. Unless it's too cold like 25'C then you must monitor time to time esp Morning and Night then you need to use heater.

This is a nice instruction! Would get to fish shop tmr evening. Haih, then bought nlackwater and ph... Useless already. Wasted.

It's ok, just keep it for future use (if by any chance la)
Dont worry, we all learn from each other to give our Best to our beloved aro to ensure they grow healthy and happy. And I'm still learning =)

All the best and wait for your good news.

Everything done. Is it okay ?

Great, just keep monitoring.
You have changed the 2nd & 3rd layer to bio rings right? How about the 4th layer?

Water flew through sponge/wool > bio rings > small hard  brown pellets (the shop guy call me to use this, also one of the bacteria stuff) > carbon + sponge > carbon + sponge

Shud be fine. The so called "small hard brown pellets" are aqua clays actually.
Try to reduce 1 layer of carbon and replace with bio rings or aqua clays to maximize the space for BB growth.
As you dont really need that much of carbons to absorb the toxic.

Have you poured the bacteria booster in ur tank?

Okay, maybe next week. This week spent too much.
I pour into the canister,  its the same, then it pump up back to aquarium.
The one i buoght is call psb bacteria, very smelly. The shop only have that

ok, that shud be fine.

ok, that shud be fine.

This is still happening bro, this is how it ignore the mealworms.
https://www.youtube.com/watch?v=vYc-BD1BRz8...be_gdata_player

Bro, it take times to help to improve its appetite la. In the meantime, u can pour some vitamin to avoid further complication.

Okay until when only start feeding?

Monitor for few more days, don't throw in any thing 1st. Then try feed it with market prawn.
Trust me, unless your aro is addicted to insects like crickets and worms, better feed them with market prawn.

Quickly remove the worms if your aro doesn't pick it up, don't leave it there.
The ideal response is your aro will eat the worms straight when you throw it in.

Okay! market prawn is..... ? the one we cook and eat? or small live krill from fish shop?

Market prawn means prawn selling in pasar. U can get it pasar pagi or supermarket like Jusco and TheStore.
Those in medium size and in grey color. Dont buy those orange color one.

Market prawn means prawn selling in pasar. U can get it pasar pagi or supermarket like Jusco and TheStore.
Those in medium size and in grey color. Dont buy those orange color one.

Also dont buy prawn that is too slippery..if it is too slippery it means there is chemical added despite of how fresh it looks..usually the chemical added to make it look fresh it the chemical used to preserve a decease..

What about market prawn that is kept in the freezer for days ? I take out melt it, take away the shell and cut into pieces ?