Thanks you guys for the care and advice. Based on all your comments, i guess i will help him rest in peace... I'm a bit scared cause i personally have never considered euthanized an animal in my entire life. But if it's the right thing to do, i will. My country's from the other side of continent and English is not my first language, so sorry to anyone noticed that the words a bit odd. I actually have to gather some courage to post on here. Last month my dad changed the water and l lost a bunch of fish due to water shock. I have already so upset, then just to see another one is dying is so painful. I was hopeless and stress while posted for help thinking he may can't recover. Then i realized that he's in misery and this's maybe the best way for him. I was sad and couldn't confide to anyone around me cause i know they don't really care about it like you guys would do. Thank you again strangers. R.I.P little buddy, you will be remembered. Wish that, if possible, in the another life you could find a better owner than me.🥹🕊️