Great save...tbh that is one of the prettiest betta i have ever seen come out of a petco plastic cup. Trust me if i had the space and time to save every helpful fish i seen at a fs, id probably have to sell my furniture for more tanks.
One in particular fish i want to save really bad is a Bolivian ram at the lfs
i go to, its back fin is severed in two...and out of all the rams in that tank its one of the best looking ones with a personality. Just too bad i cant add another ram to my tank!