For all the would be "Recuers" just remember the more fish you "Rescue" the more they will replace them with equally horrible bad genetic, disease ridden fish.
If you really want to help the craft stop rescuing!!!
Buy from a breeder, can't afford it you say?
Many breeders cull thier fish, by far the culls you will recieve will be ten times better than the best "Rescued" fish.
I am sure there are many breeders here that would gladly give you thier superior culls than have you buy the stuff and support a market that will never change due to corperate policy.
Also you should know that 90% of the bettas from places like petco and petsmart have Mycro..a very nasty disease that infects everything it touches and is very hard to get rid of, so if you do have any bettas worth anything chances of killing him or her are very good.
Resuce the culls and forget about the sad fish in the cups that are near death and opt for the good ones you will be helping a breeder find homes for.
How many breeders here agree?