Beautiful betta!
Another great little filter is the Tetra Whisper 3i
http://www.petsmart.com/product/index.jsp?productId=2752355&lmdn=Brand
I use it on my 2.5 gal dwarf puffer tank with a little piece of sponge tucked inside with the filter media. I like that it attaches with suction cups, making it a little more versatile than the hang-on-back design of the Nano.
I've had better luck finding it in the stores near me, too. I looked for the Nano once and found that none of the stores carried it in-store, and only Petco carried it online.
Another great little filter is the Tetra Whisper 3i
http://www.petsmart.com/product/index.jsp?productId=2752355&lmdn=Brand
I use it on my 2.5 gal dwarf puffer tank with a little piece of sponge tucked inside with the filter media. I like that it attaches with suction cups, making it a little more versatile than the hang-on-back design of the Nano.
I've had better luck finding it in the stores near me, too. I looked for the Nano once and found that none of the stores carried it in-store, and only Petco carried it online.