I got my female fry betta veiltail, Baby Blue, at Petco. She couldn't have been more than 6 months old when I got her; so was so tiny! She lives in a 5 gallon tank and is about 8 months old now. Everything I've ever heard about bettas she contradicts!
She swims around like a manic, enjoys current (when I do water changes, she has to get right under where the new water is coming in), is mega territorial and inquisitive.
Now that I'm raising a tiny female betta wild child, I wonder: Is the reason bettas seem to like lower current in a tank because they generally wind up in those tiny store bowls, with no room to really swim or be stimulated, and their swimming abilities atrophy?
After living in an empty apartment sized bathroom for half of your life, how well would any of us cope in a larger, more turbulent environment?
Have you noticed at pet stores where bettas are in tiny bowls, they don't barely move? Even if practically up against each other, these older bettas don't even bother to flare at their neighbors?
I was lucky to find a fry.
I know I sound like I'm down on the pet stores. Some are very good; others not so good... chain or private store, it doesn't matter. It pains me to see poor fishy husbandry. :*(
I go into stores and if I see poor conditions and ill fish, I bring it to the attention of the clerk in that department. If I come back and it doesn't get better, then I talk to the owner or manager. If they don't improve, I don't go back...