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.
EGD - esophagogastroduodenoscopy. Esophagogastroduodenoscopy (EGD) is a test to examine the lining of the esophagus, stomach, and first part of the small intestine. EGD is done in a hospital or medical center. The procedure uses an endoscope. This is a flexible tube with a light and camera at the end. The procedure is done as follows:
Sometimes, the esophageal dilation procedure is performed along with an upper endoscopy. If this is the case for you, you will be sedated before the procedure begins. Your doctor might spray the back of your throat with a local anesthetic and then administer sedatives.