Well my little sister has a female betta in a little betta bowl (yes I know) and she did her weekly water change but forgot to add the dechlorinator. It's been about 5 hours before she realized. I added a dose of Prime but after a short bout of research added another dose and we're areating the bowl with the areator from the other 10 gal on lowest setting. The fish isn't showing any outward behavior or change of colour (Can't tell because I don't check on her fish but it's showing normal behavior for a betta). Maybe the fish's a little lethargic but again I can't really tell (But she moved pretty fast when I added the areator). Is there anything else we can do and how long do we leave the areator in? What are her odds of survival?