It is so tempting to buy another Betta. I have one in a 10 gallon with a male hm betta, cories, snail, and shrimp. I used to have two with the 10 gallon divided.
Well I have 2 extra tanks. I have a 5 gallon and a 2.5 gallon, one extra filter, 2 extra heaters, gravel, plants, decor pretty much everything to set up one more tank. Ugh...it's so tempting. Hell I even still have my divider for my 10 gallon, but I would hate to divide it with the cories in there, they need their space.
But I really don't have the time for another tank. I have the 10 gallon, 55 gallon, my gecko, and cat, also college student and working full time.