My Betta has been living in a 1 gallon bowl since the day I got him. I upgraded his home to a 10 gallon tank with tank mates to keep him company. He was stressed out for the first day when I placed him in his new home, swimming around like his head was caught off. Soon he grew comfortable and start loving his home. Recently I notice he started to decline. Bloating to fin rot. His personalty just died. I felt bad for him and wonder if I should leave him be after
he is back to health or move him back to his old home where he is comfortable in, and rescue another Betta for the tank.
What are your upgrading woes when you introduce your Betta in a bigger environment.