I noted that with each time I gave my bettas more room to move in and did not push the pedal with the other inhabitants, they got more active and loving. Their personality blooms and they become real companions. It is worth the time and effort and besides those little "tanklets" are not enough room for them to hardly turn around in and impossible to heat and filter safely. They are inhumane and a death trap for the fish. It would take 2 or 3 times daily water changes to keep up with the ammonia buildup in them.

Not worth it and it is so nice to see them play and react to their surroundings!

Good luck I got escorted out of the Petco that I tried to talk to them about their betta care and the recommendations of an employee to another customer but I did cost them a sale that day.....

Rose