so does that mean you specifically shop online? i mean, all pet stores have cramped tanks, i dont know if you can really stop them from selling dyed fish, i personally have told 5-6 managers about selling dyed fish and most of them give a good fight that, business is business, if a product can bring in money like hot cakes, how do you run away from it? you arent paying their bills to rent out the place, or to have electricity... even though i hate it, i wont tell them to rot in a hole
and shopping online is expensive, REAL expensive, i 99.9% guarantee that their are no fish stores out there that accommodate every fish, because if they do, they would have to own a whole block to do so, lots of 55/75 for all the cichlids, 300g per arrowana, lots of 20g longs or even 30g for every school of tetra/cories, 55g for one or two RTS, its just insane to accommodate every fish, and think about if its a pet store that sells dogs, cats, guinea pigs, lizards, snakes... forget about it, i havent even gotten into africans, each section for each lake if you want to be specific and serious about fish keeping, lots of 75g-90g if you want to accommodate each species
and speaking of mistreatment, bettas? 5g per betta? and petco has 30-40 bettas each week, do you expect them to make 5g tanks across the shelf w/ heater, filter for each betta? thats insane, each betta would cost about 20$, just because they need the money to pay for their bills
i can go on and on with hundreds of scenarios