Bout 20 years about I had 7 betta's that lived year round in gallon tea jars since a propane heater kept it warm enough in the winter and AC kept it from getting to hot in the summer. Back then I used some tricks I learned working in a pet shop that gave them all long full lives, but I don't remember what they where now. Know I did have 2 kitchen size trash cans I cured their water in and one I grew live brime shrimp for them in.
Fast forward to now back in the summer while up in the city I bought a betta at Petco. Then decided he needed a mate so I bought one at Walley World and later a female to put between them. They didn't get to visit all day, only for a while nightly. Then I saw one at Walley World that was in a very dirty cup, looked half dead and real ragged fins so I brought him home to try and save him or let him die in peace. Come to find out he is a CT instead of a VT and has made it several months since I bought him. His name has turned out to be FancyDan, while the first blue male I got is named DaddyO (pretty old when I bought him since he was full size), female is BlueGirl and the yellow/white one is KnightInWhiteSatin, he's quiet a show off.
They joined the rest of my crew living in the country-2 dogs, donkey & mule, 8 cats, rabbit and coons that hang in the barn. Down sizing to things that are easier to haul food for in my older age :).
Stumbled on this forum to find out current info on betta's which is really nice. Hopefully the question I posted will be answered tonight since I need to do another water change tomorrow. Had to stop and feed the outside before it got real dark before this post, since I don't like being around the coons in the dark. Never know if a sick one will attack or have rabies and I had to burry one last week. I've seen how one that was trained to attack acted years ago and I denfinately do not want to tangle with something like that in the dark :).