Baby betta thriving
I recently picked up a baby Betta from Petco -- and the little thing is absolutely thriving. It certainly wasn't any more difficult than raising guppy fry -- heck, it was substantially EASIER.
And, since I just want a "desk" companion, it didn't matter to me what variety or even what gender. It's just a cool, potentially pretty, inexpensive little Betta who's already doubled its size in two weeks, recognizes me instantly, and is developing nice rich colors.
I think it's probably a female -- but the colors are still coming in rich and pleasant. I'm not at all disappointed that I took the chance.