I just picked up my new betta. I did not go with a baby as I was fearful it would require more than I can give. I have had my tank set up for a week letting it cycle but I couldnt wait anymore I was ready for a betta! I will post pics as soon as I get home
I am so sorry for your loss! SIP at the Rainbow Bridge.
IMO, baby bettas are challenging. They have require warmer water, smaller food, etc. Some people on this forum have had great success with babies, but personally, I prefer the adults since I know exactly what I'm getting.
The chains vary in terms of their care. If the store specializes in pets (Petco, Petsmart, etc), then speaking to the store manager can help. These stores want to maintain a good reputation with regards to pets. If the store doesn't specialize in pets, speaking with the store manager may, or may not, be helpful. It just depends on the store.
As for rescuing fish, if they have an illness, sometimes they survive, sometimes they don't. It just depends on the disease/condition & how far it's progressed. If you want to rescue one, look for one that appears active AND healthy, but whose cup looks icky. Most of the time, all they need to recover is some clean, warm water & good nutrition