My wal mart has a pretty good selection of tanks, for not to expensive. Plus all the supplies needed. And they have a nice betta selection. I went to one petsmart and I couldn't find on healthy betta. DX
But yes wal mart is much cheaper, though I like buying deco from petsmart.
Tiny and Squirtle (squirt)
RIP:To all my sweet bettas swimming under the rainbow bridge. Shall miss you all.