Some people just believe their way is the best way.. when in reality, there are many, many different ways that are all good. I have to agree with some that have mentioned it's the care of the fish, rather then the size of their tanks that matter. Yes, I will recommend at least 1 gal, but I can't say someone is a bad owner for having them in a half gallon, as long as the proper water changes are being made, and the temp is correct.
It's like with just about any animal that people buy that are in pet stores - ohh poor puppy is in a small cage, oh that snake needs a bigger tank, etc.. you feel bad for them living in unfavorable conditions you want to take them home to give them something bigger, better.. just some people are a little overzealous when it comes to the care of the animal.
Example: Our dog eats Blue Buffalo, one of the top brands, expensive, has pretty much the best formula out there. Rarely will get table scraps, is trained in every way you can think of. Heck, drop a steak in front of her and she'll look at you until you say "ok". She has made maybe 2 mistakes in the house in her life, she's been with my bf from the age of 8 weeks, and she's a little over 2 years old now, so even as a puppy she was properly trained. She is the perfect weight, up to date on all her shots, tagged, chipped and get regular grooming, including nails trimmed at least every month. She is the most gentle dog around children and is very happy and will greet anyone with a tail wag and dance. She's half black lab, half border collie. Anyways point is- my bf will sometimes visit a lab forum to see if anything new is going on in the breed world.. you know how many times he has been told that he is taking bad care of his dog? He LOVES his pets, he keeps them for their full, long lives and will give them the best, healthiest of lives.
But some people say he should be feeding her raw meat, cooked meat, that she doesn't go out to the bathroom on a set schedule, etc. That he only feeds her the recommended amount of food per day that the vet recommended, and the breed(s) need. But some say it's not enough..
Some people can be extremists when it comes to their animals, and they are stubborn and think all should be the same, when in fact what is good for some, isn't good for others. I know one of my boys prefers the 1 gal over the larger sizes. But that does not mean I am not giving him the best.
Okay.. I think I just kept on typing and typing.. sorry! I'm a little out of it right now lol
Breeder so I have too many to count and too many named to list here!