Standard Deduction Vs. Itemizing. Adjusted gross income has nothing to do with itemizing, which is a common mistake may people make. The section on Form 1040A following Adjusted Gross Income is titled Tax and Credits and includes Line 40 for itemized deductions and Line 42 for exemptions.
Bettas being kept as pets will do well on a standard pellet food designed especially for bettas (I recommend HBH Betta Bites or Tetramin granules) with an occasional treat of frozen/live worms or freeze-dried brine shrimp andbloodworms. Pet bettas should not be overfed; a few pellets per feeding is sufficient.
Put a straw in the tank and watch your betta to see if he/she gets used to it. If he/she does, and you have leftover betta food he/she won't eat, place one of the leftover pellets in the tank. Place the straw over it so that it is inside the straw. Hold the straw over the fish and wait for him/her to find it.