OohFeeshy
It's only forever; not long at all...
I've currently got a few 1gs in temporary use and a few more 1.5gs (3 or so long and squat, two cubular) and I've yet to see anything that indicates 'unhappiness' with said tank. They swim around, they bubblenest viraciously, bright colours (if the betta in question actually *is* brightly coloured), long, perfectly shaped fins (or short in the case of the two PKs and one female), chubby, and the only illness I've ever had was brought on by something airbourne. So something must be right- maybe it's the non-dechlored water, the healthy algael growth, tank size and sparse feeding
For every person who agrees with Lynden, many won't actually have kept bettas, or if they have, not many, and there are at least ten people to every one of those. Personally I think it's cruel keeping bettas with any other fish, but lets not get into that... And if you particularly want to get involved in other peoples fishkeeping practices, well, it's definately not right to to keep Pangasius in tanks at all...
For every person who agrees with Lynden, many won't actually have kept bettas, or if they have, not many, and there are at least ten people to every one of those. Personally I think it's cruel keeping bettas with any other fish, but lets not get into that... And if you particularly want to get involved in other peoples fishkeeping practices, well, it's definately not right to to keep Pangasius in tanks at all...

The bowl seemed quite a generous upgrade to 'non fishy' people, of course I stressed (repeatedly) how great the 2.5's are, and when we got home with our new pet betta we promptly put him in a 2.5 and he's quite a happy fellow. Now you, Lynden, may point your finger at my little seven year old daughter and call her cruel for using a 2.5..but ya know what? I bet 98% of the fish purchased that day are rotting in those itty bitty bowls and theres nothing anybody can do about it. Of course I plan to do a Betta Care 101 at the next meeting, I tried my best to talk the troop leaders into the biggest bowls they could find...and I insisted that each girl gets a bottle of dechlorinator, but otherwise I closed my eyes and let them handle it as to not come off pushy and to stay as far away from that train wreck as I could.