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:
Esophageal manometry is an outpatient test used to identify problems with movement and pressure in the esophagus that may lead to problems like heartburn. The esophagus is the food pipe leading from the mouth to the stomach. Manometry measures the strength and muscle coordination of your esophagus when you swallow.