I couldn't find a good lid at the petstore, so I cut a piece of window screen to fit the tank. It's being held on with blue poster putty, I think you can see that in the photo But I leave the screen off when I'm in the room sometimes to give him some air
Most of us stopped recommending Hikari a bit ago because they changed their formula to a primarily wheat-based ingredient, I believe it is. I recommend Atison's Betta Pellets but I order mine through www.lnt.com. A lot of people like the Omega One Betta Buffet Pellets as well.
DONT BUY THE LEAF! People have reported that the metal wire inside the leaf thing is not properly selaed and leeches rust in the water (BAD). Just get a silk plant with wide leaves and you'll be good to go. My betta doesnt even rest on leaves though. I have a bunch of live plants in his 10 gal and he usually just rests on the gravel :/
The tank's a glass 2.5 gal from Petland, I was surprised it was only 12 dollars! I think the brand is Marina? Not sure though...
I LOL'd. I bought an empty 10 gallon from walmart for $13. Dont worry, 2.5 gallons is good for a betta though :P