*big hug* You took good care of him for 3 years. 3 years, that's a long life for a betta and I know he was happy every minute. I'm so sorry you're having to go through this right now. :( I know Azure loves you.
I'm worried about the same. :( I'm somehow pretty sure he won't make it.
I have him in some ES and IAL.. I was hoping its SBD but it doesn't seem to be helping.. I've put him in very shallow water but he still has problems... I can't bear to look at him! X(
Its not your fault Sakura, how would you medicate if you didn't know what was wrong? :( I'm sorry you lost her, I hope the other fish will be ok.
I'm in a similar predicament with Azure.. I have no idea what's wrong. :(
I really don't know how Chiana died. She was beating up on my platy so I took her out of the community tank a week ago. After that, all she did was just sit there and breathe heavily and refuse to eat. I thought she was sulking at being downgraded into smaller quarters but after three days of that, I put her in AQ salt. She died two days after that, if I'm remembering correctly. I still don't know if I should have treated her for a bacteria or a parasite or what. She showed no other signs of illness. :/ I feel like I failed her because I didn't medicate her. Poor Chiana. I have the platies QTed in case she got something from biting the female platy all the time.